[FIR] Fix enhancement of FlexibleNullability and EnhancedNullability

- Add utilities to add new attribute to ConeAttributes
- Get rid of FlexibleNullability attribute (it can be easily inferred
    for any flexible type at any moment)
- Fix determining of EnhancedNullability attribute

compiler/testData/ir/irText/expressions/breakContinueInWhen.fir.txt

@@ -137,5 +137,5 @@ FILE fqName:<root> fileName:/breakContinueInWhen.kt
               arg0: GET_VAR 'var s: kotlin.String [var] declared in <root>.testContinueDoWhile' type=kotlin.String origin=null
               arg1: CONST String type=kotlin.String value="1;2;"
           then: THROW type=kotlin.Nothing
-            CONSTRUCTOR_CALL 'public constructor <init> (p0: kotlin.Any?) declared in java.lang.AssertionError' type=java.lang.AssertionError origin=null
+            CONSTRUCTOR_CALL 'public constructor <init> (p0: @[FlexibleNullability] kotlin.Any?) declared in java.lang.AssertionError' type=java.lang.AssertionError origin=null
               p0: GET_VAR 'var s: kotlin.String [var] declared in <root>.testContinueDoWhile' type=kotlin.String origin=null

compiler/testData/ir/irText/expressions/coercionToUnit.fir.kt.txt

@@ -11,14 +11,14 @@ fun test2(mc: MutableCollection<String>) {
 
 fun test3() {
   { // BLOCK
-    val tmp0_safe_receiver: PrintStream? = #out
+    val tmp0_safe_receiver: @FlexibleNullability PrintStream? = #out
     when {
       EQEQ(arg0 = tmp0_safe_receiver, arg1 = null) -> null
       else -> tmp0_safe_receiver.println(p0 = "Hello,")
     }
   } /*~> Unit */
   { // BLOCK
-    val tmp1_safe_receiver: PrintStream? = #out
+    val tmp1_safe_receiver: @FlexibleNullability PrintStream? = #out
     when {
       EQEQ(arg0 = tmp1_safe_receiver, arg1 = null) -> null
       else -> tmp1_safe_receiver.println(p0 = "world!")

compiler/testData/ir/irText/expressions/coercionToUnit.fir.txt

@@ -23,31 +23,31 @@ FILE fqName:<root> fileName:/coercionToUnit.kt
     BLOCK_BODY
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
         BLOCK type=kotlin.Unit? origin=SAFE_CALL
-          VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:java.io.PrintStream? [val]
-            GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:java.io.PrintStream? visibility:public [final,static]' type=java.io.PrintStream? origin=GET_PROPERTY
+          VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:@[FlexibleNullability] java.io.PrintStream? [val]
+            GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:@[FlexibleNullability] java.io.PrintStream? visibility:public [final,static]' type=@[FlexibleNullability] java.io.PrintStream? origin=GET_PROPERTY
           WHEN type=kotlin.Unit? origin=null
             BRANCH
               if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
-                arg0: GET_VAR 'val tmp_0: java.io.PrintStream? [val] declared in <root>.test3' type=java.io.PrintStream? origin=null
+                arg0: GET_VAR 'val tmp_0: @[FlexibleNullability] java.io.PrintStream? [val] declared in <root>.test3' type=@[FlexibleNullability] java.io.PrintStream? origin=null
                 arg1: CONST Null type=kotlin.Nothing? value=null
               then: CONST Null type=kotlin.Nothing? value=null
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
-              then: CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
-                $this: GET_VAR 'val tmp_0: java.io.PrintStream? [val] declared in <root>.test3' type=java.io.PrintStream? origin=null
+              then: CALL 'public open fun println (p0: @[FlexibleNullability] kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
+                $this: GET_VAR 'val tmp_0: @[FlexibleNullability] java.io.PrintStream? [val] declared in <root>.test3' type=@[FlexibleNullability] java.io.PrintStream? origin=null
                 p0: CONST String type=kotlin.String value="Hello,"
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
         BLOCK type=kotlin.Unit? origin=SAFE_CALL
-          VAR IR_TEMPORARY_VARIABLE name:tmp_1 type:java.io.PrintStream? [val]
-            GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:java.io.PrintStream? visibility:public [final,static]' type=java.io.PrintStream? origin=GET_PROPERTY
+          VAR IR_TEMPORARY_VARIABLE name:tmp_1 type:@[FlexibleNullability] java.io.PrintStream? [val]
+            GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:@[FlexibleNullability] java.io.PrintStream? visibility:public [final,static]' type=@[FlexibleNullability] java.io.PrintStream? origin=GET_PROPERTY
           WHEN type=kotlin.Unit? origin=null
             BRANCH
               if: CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
-                arg0: GET_VAR 'val tmp_1: java.io.PrintStream? [val] declared in <root>.test3' type=java.io.PrintStream? origin=null
+                arg0: GET_VAR 'val tmp_1: @[FlexibleNullability] java.io.PrintStream? [val] declared in <root>.test3' type=@[FlexibleNullability] java.io.PrintStream? origin=null
                 arg1: CONST Null type=kotlin.Nothing? value=null
               then: CONST Null type=kotlin.Nothing? value=null
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
-              then: CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
-                $this: GET_VAR 'val tmp_1: java.io.PrintStream? [val] declared in <root>.test3' type=java.io.PrintStream? origin=null
+              then: CALL 'public open fun println (p0: @[FlexibleNullability] kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
+                $this: GET_VAR 'val tmp_1: @[FlexibleNullability] java.io.PrintStream? [val] declared in <root>.test3' type=@[FlexibleNullability] java.io.PrintStream? origin=null
                 p0: CONST String type=kotlin.String value="world!"

compiler/testData/ir/irText/expressions/constructorWithOwnTypeParametersCall.fir.kt.txt

@@ -2,8 +2,8 @@ fun testKotlin(): K2<String, Int> {
   return K1<Int>().K2<String>()
 }
 
-fun testJava(): J2<Double?, Int?> {
-  return J1<Int?, String?>().J2<Double?, CharSequence?>()
+fun testJava(): J2<@FlexibleNullability Double?, @FlexibleNullability Int?> {
+  return J1<@FlexibleNullability Int?, @FlexibleNullability String?>().J2<@FlexibleNullability Double?, @FlexibleNullability CharSequence?>()
 }
 
 class K1<T1 : Number> {

compiler/testData/ir/irText/expressions/constructorWithOwnTypeParametersCall.fir.txt

@@ -6,15 +6,15 @@ FILE fqName:<root> fileName:/constructorWithOwnTypeParametersCall.kt
           <class: T2>: kotlin.String
           $outer: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.K1' type=<root>.K1<kotlin.Int> origin=null
             <class: T1>: kotlin.Int
-  FUN name:testJava visibility:public modality:FINAL <> () returnType:<root>.J1.J2<kotlin.Double?, kotlin.Int?>
+  FUN name:testJava visibility:public modality:FINAL <> () returnType:<root>.J1.J2<@[FlexibleNullability] kotlin.Double?, @[FlexibleNullability] kotlin.Int?>
     BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun testJava (): <root>.J1.J2<kotlin.Double?, kotlin.Int?> declared in <root>'
-        CONSTRUCTOR_CALL 'public constructor <init> <Y2> () declared in <root>.J1.J2' type=<root>.J1.J2<kotlin.Double?, kotlin.Int?> origin=null
-          <class: X2>: kotlin.Double?
-          <Y2>: kotlin.CharSequence?
-          $outer: CONSTRUCTOR_CALL 'public constructor <init> <Y1> () declared in <root>.J1' type=<root>.J1<kotlin.Int?> origin=null
-            <class: X1>: kotlin.Int?
-            <Y1>: kotlin.String?
+      RETURN type=kotlin.Nothing from='public final fun testJava (): <root>.J1.J2<@[FlexibleNullability] kotlin.Double?, @[FlexibleNullability] kotlin.Int?> declared in <root>'
+        CONSTRUCTOR_CALL 'public constructor <init> <Y2> () declared in <root>.J1.J2' type=<root>.J1.J2<@[FlexibleNullability] kotlin.Double?, @[FlexibleNullability] kotlin.Int?> origin=null
+          <class: X2>: @[FlexibleNullability] kotlin.Double?
+          <Y2>: @[FlexibleNullability] kotlin.CharSequence?
+          $outer: CONSTRUCTOR_CALL 'public constructor <init> <Y1> () declared in <root>.J1' type=<root>.J1<@[FlexibleNullability] kotlin.Int?> origin=null
+            <class: X1>: @[FlexibleNullability] kotlin.Int?
+            <Y1>: @[FlexibleNullability] kotlin.String?
   CLASS CLASS name:K1 modality:FINAL visibility:public superTypes:[kotlin.Any]
     $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.K1<T1 of <root>.K1>
     TYPE_PARAMETER name:T1 index:0 variance: superTypes:[kotlin.Number]

compiler/testData/ir/irText/expressions/equals.fir.txt

@@ -19,11 +19,11 @@ FILE fqName:<root> fileName:/equals.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testJEqeqNull (): kotlin.Boolean declared in <root>'
         CALL 'public final fun EQEQ (arg0: kotlin.Any?, arg1: kotlin.Any?): kotlin.Boolean declared in kotlin.internal.ir' type=kotlin.Boolean origin=EQEQ
-          arg0: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:INT_NULL type:kotlin.Int? visibility:public [static]' type=kotlin.Int? origin=GET_PROPERTY
+          arg0: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:INT_NULL type:@[FlexibleNullability] kotlin.Int? visibility:public [static]' type=@[FlexibleNullability] kotlin.Int? origin=GET_PROPERTY
           arg1: CONST Null type=kotlin.Nothing? value=null
   FUN name:testJEqualsNull visibility:public modality:FINAL <> () returnType:kotlin.Boolean
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testJEqualsNull (): kotlin.Boolean declared in <root>'
         CALL 'public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any' type=kotlin.Boolean origin=null
-          $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:INT_NULL type:kotlin.Int? visibility:public [static]' type=kotlin.Int? origin=GET_PROPERTY
+          $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:INT_NULL type:@[FlexibleNullability] kotlin.Int? visibility:public [static]' type=@[FlexibleNullability] kotlin.Int? origin=GET_PROPERTY
           other: CONST Null type=kotlin.Nothing? value=null

compiler/testData/ir/irText/expressions/implicitCastOnPlatformType.fir.kt.txt

@@ -1,3 +1,3 @@
 fun test(): String {
-  return getProperty(p0 = "test") /*!! String */
+  return getProperty(p0 = "test") /*!! @FlexibleNullability String */
 }

compiler/testData/ir/irText/expressions/implicitCastOnPlatformType.fir.txt

@@ -2,6 +2,6 @@ FILE fqName:<root> fileName:/implicitCastOnPlatformType.kt
   FUN name:test visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test (): kotlin.String declared in <root>'
-        TYPE_OP type=kotlin.String origin=IMPLICIT_NOTNULL typeOperand=kotlin.String
-          CALL 'public open fun getProperty (p0: kotlin.String?): kotlin.String? declared in java.lang.System' type=kotlin.String? origin=null
+        TYPE_OP type=@[FlexibleNullability] kotlin.String origin=IMPLICIT_NOTNULL typeOperand=@[FlexibleNullability] kotlin.String
+          CALL 'public open fun getProperty (p0: @[FlexibleNullability] kotlin.String?): @[FlexibleNullability] kotlin.String? declared in java.lang.System' type=@[FlexibleNullability] kotlin.String? origin=null
             p0: CONST String type=kotlin.String value="test"

compiler/testData/ir/irText/expressions/implicitNotNullInDestructuringAssignment.fir.kt.txt

@@ -7,7 +7,7 @@ private operator fun J.component2(): Int {
 }
 
 fun test() {
-  val <destruct>: J? = j()
+  val <destruct>: @FlexibleNullability J? = j()
   val a: Int = <destruct>.component1()
-  val b: Int = <destruct> /*!! J */.component2()
+  val b: Int = <destruct> /*!! @FlexibleNullability J */.component2()
 }

compiler/testData/ir/irText/expressions/implicitNotNullInDestructuringAssignment.fir.txt

@@ -11,12 +11,12 @@ FILE fqName:<root> fileName:/implicitNotNullInDestructuringAssignment.kt
         CONST Int type=kotlin.Int value=2
   FUN name:test visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
-      VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:<root>.J? [val]
-        CALL 'public open fun j (): <root>.J? declared in <root>.J' type=<root>.J? origin=null
+      VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:@[FlexibleNullability] <root>.J? [val]
+        CALL 'public open fun j (): @[FlexibleNullability] <root>.J? declared in <root>.J' type=@[FlexibleNullability] <root>.J? origin=null
       VAR name:a type:kotlin.Int [val]
         CALL 'public final fun component1 (): kotlin.Int [operator] declared in <root>' type=kotlin.Int origin=null
-          $receiver: GET_VAR 'val tmp_0: <root>.J? [val] declared in <root>.test' type=<root>.J? origin=null
+          $receiver: GET_VAR 'val tmp_0: @[FlexibleNullability] <root>.J? [val] declared in <root>.test' type=@[FlexibleNullability] <root>.J? origin=null
       VAR name:b type:kotlin.Int [val]
         CALL 'private final fun component2 (): kotlin.Int [operator] declared in <root>' type=kotlin.Int origin=null
-          $receiver: TYPE_OP type=<root>.J origin=IMPLICIT_NOTNULL typeOperand=<root>.J
-            GET_VAR 'val tmp_0: <root>.J? [val] declared in <root>.test' type=<root>.J? origin=null
+          $receiver: TYPE_OP type=@[FlexibleNullability] <root>.J origin=IMPLICIT_NOTNULL typeOperand=@[FlexibleNullability] <root>.J
+            GET_VAR 'val tmp_0: @[FlexibleNullability] <root>.J? [val] declared in <root>.test' type=@[FlexibleNullability] <root>.J? origin=null

compiler/testData/ir/irText/expressions/jvmStaticFieldReference.fir.txt

@@ -1,15 +1,15 @@
 FILE fqName:<root> fileName:/jvmStaticFieldReference.kt
   FUN name:testFun visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
-      CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
-        $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:java.io.PrintStream? visibility:public [final,static]' type=java.io.PrintStream? origin=GET_PROPERTY
+      CALL 'public open fun println (p0: @[FlexibleNullability] kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
+        $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:@[FlexibleNullability] java.io.PrintStream? visibility:public [final,static]' type=@[FlexibleNullability] java.io.PrintStream? origin=GET_PROPERTY
         p0: CONST String type=kotlin.String value="testFun"
   PROPERTY name:testProp visibility:public modality:FINAL [var]
     FUN name:<get-testProp> visibility:public modality:FINAL <> () returnType:kotlin.Any
       correspondingProperty: PROPERTY name:testProp visibility:public modality:FINAL [var]
       BLOCK_BODY
-        CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
-          $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:java.io.PrintStream? visibility:public [final,static]' type=java.io.PrintStream? origin=GET_PROPERTY
+        CALL 'public open fun println (p0: @[FlexibleNullability] kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
+          $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:@[FlexibleNullability] java.io.PrintStream? visibility:public [final,static]' type=@[FlexibleNullability] java.io.PrintStream? origin=GET_PROPERTY
           p0: CONST String type=kotlin.String value="testProp/get"
         RETURN type=kotlin.Nothing from='public final fun <get-testProp> (): kotlin.Any declared in <root>'
           CONST Int type=kotlin.Int value=42
@@ -17,8 +17,8 @@ FILE fqName:<root> fileName:/jvmStaticFieldReference.kt
       correspondingProperty: PROPERTY name:testProp visibility:public modality:FINAL [var]
       VALUE_PARAMETER name:value index:0 type:kotlin.Any
       BLOCK_BODY
-        CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
-          $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:java.io.PrintStream? visibility:public [final,static]' type=java.io.PrintStream? origin=GET_PROPERTY
+        CALL 'public open fun println (p0: @[FlexibleNullability] kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
+          $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:@[FlexibleNullability] java.io.PrintStream? visibility:public [final,static]' type=@[FlexibleNullability] java.io.PrintStream? origin=GET_PROPERTY
           p0: CONST String type=kotlin.String value="testProp/set"
   CLASS CLASS name:TestClass modality:FINAL visibility:public superTypes:[kotlin.Any]
     $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.TestClass
@@ -33,8 +33,8 @@ FILE fqName:<root> fileName:/jvmStaticFieldReference.kt
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
               then: BLOCK type=kotlin.Int origin=null
-                CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
-                  $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:java.io.PrintStream? visibility:public [final,static]' type=java.io.PrintStream? origin=GET_PROPERTY
+                CALL 'public open fun println (p0: @[FlexibleNullability] kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
+                  $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:@[FlexibleNullability] java.io.PrintStream? visibility:public [final,static]' type=@[FlexibleNullability] java.io.PrintStream? origin=GET_PROPERTY
                   p0: CONST String type=kotlin.String value="TestClass/test"
                 CONST Int type=kotlin.Int value=42
       FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test> visibility:public modality:FINAL <> ($this:<root>.TestClass) returnType:kotlin.Int
@@ -46,8 +46,8 @@ FILE fqName:<root> fileName:/jvmStaticFieldReference.kt
               receiver: GET_VAR '<this>: <root>.TestClass declared in <root>.TestClass.<get-test>' type=<root>.TestClass origin=null
     ANONYMOUS_INITIALIZER isStatic=false
       BLOCK_BODY
-        CALL 'public open fun println (p0: kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
-          $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:java.io.PrintStream? visibility:public [final,static]' type=java.io.PrintStream? origin=GET_PROPERTY
+        CALL 'public open fun println (p0: @[FlexibleNullability] kotlin.String?): kotlin.Unit declared in java.io.PrintStream' type=kotlin.Unit origin=null
+          $this: GET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:out type:@[FlexibleNullability] java.io.PrintStream? visibility:public [final,static]' type=@[FlexibleNullability] java.io.PrintStream? origin=GET_PROPERTY
           p0: CONST String type=kotlin.String value="TestClass/init"
     FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
       overridden:

compiler/testData/ir/irText/expressions/nullCheckOnGenericLambdaReturn.fir.kt.txt

@@ -1,47 +0,0 @@
-fun checkAny(fn: Function0<Any>): Any {
-  return fn.invoke()
-}
-
-fun checkAnyN(fn: Function0<Any?>): Any? {
-  return fn.invoke()
-}
-
-fun <T : Any?> checkT(fn: Function0<T>): T {
-  return fn.invoke()
-}
-
-fun <T : Any> checkTAny(fn: Function0<T>): T {
-  return fn.invoke()
-}
-
-fun <T : Any?> id(x: T): T {
-  return x
-}
-
-fun test1(): String? {
-  return checkT<String?>(fn = local fun <anonymous>(): String? {
-    return foo()
-  }
-)
-}
-
-fun test2(): String {
-  return checkT<@EnhancedNullability String>(fn = local fun <anonymous>(): @EnhancedNullability String {
-    return nnFoo()
-  }
-) /*!! String */
-}
-
-fun test3(): String? {
-  return checkTAny<String?>(fn = local fun <anonymous>(): String? {
-    return foo()
-  }
-)
-}
-
-fun test4(): String {
-  return checkTAny<@EnhancedNullability String>(fn = local fun <anonymous>(): @EnhancedNullability String {
-    return nnFoo()
-  }
-) /*!! String */
-}

compiler/testData/ir/irText/expressions/nullCheckOnGenericLambdaReturn.fir.txt

@@ -1,75 +0,0 @@
-FILE fqName:<root> fileName:/nullCheckOnGenericLambdaReturn.kt
-  FUN name:checkAny visibility:public modality:FINAL <> (fn:kotlin.Function0<kotlin.Any>) returnType:kotlin.Any
-    VALUE_PARAMETER name:fn index:0 type:kotlin.Function0<kotlin.Any>
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun checkAny (fn: kotlin.Function0<kotlin.Any>): kotlin.Any declared in <root>'
-        CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=kotlin.Any origin=INVOKE
-          $this: GET_VAR 'fn: kotlin.Function0<kotlin.Any> declared in <root>.checkAny' type=kotlin.Function0<kotlin.Any> origin=VARIABLE_AS_FUNCTION
-  FUN name:checkAnyN visibility:public modality:FINAL <> (fn:kotlin.Function0<kotlin.Any?>) returnType:kotlin.Any?
-    VALUE_PARAMETER name:fn index:0 type:kotlin.Function0<kotlin.Any?>
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun checkAnyN (fn: kotlin.Function0<kotlin.Any?>): kotlin.Any? declared in <root>'
-        CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=kotlin.Any? origin=INVOKE
-          $this: GET_VAR 'fn: kotlin.Function0<kotlin.Any?> declared in <root>.checkAnyN' type=kotlin.Function0<kotlin.Any?> origin=VARIABLE_AS_FUNCTION
-  FUN name:checkT visibility:public modality:FINAL <T> (fn:kotlin.Function0<T of <root>.checkT>) returnType:T of <root>.checkT
-    TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?]
-    VALUE_PARAMETER name:fn index:0 type:kotlin.Function0<T of <root>.checkT>
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun checkT <T> (fn: kotlin.Function0<T of <root>.checkT>): T of <root>.checkT declared in <root>'
-        CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=T of <root>.checkT origin=INVOKE
-          $this: GET_VAR 'fn: kotlin.Function0<T of <root>.checkT> declared in <root>.checkT' type=kotlin.Function0<T of <root>.checkT> origin=VARIABLE_AS_FUNCTION
-  FUN name:checkTAny visibility:public modality:FINAL <T> (fn:kotlin.Function0<T of <root>.checkTAny>) returnType:T of <root>.checkTAny
-    TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any]
-    VALUE_PARAMETER name:fn index:0 type:kotlin.Function0<T of <root>.checkTAny>
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun checkTAny <T> (fn: kotlin.Function0<T of <root>.checkTAny>): T of <root>.checkTAny declared in <root>'
-        CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=T of <root>.checkTAny origin=INVOKE
-          $this: GET_VAR 'fn: kotlin.Function0<T of <root>.checkTAny> declared in <root>.checkTAny' type=kotlin.Function0<T of <root>.checkTAny> origin=VARIABLE_AS_FUNCTION
-  FUN name:id visibility:public modality:FINAL <T> (x:T of <root>.id) returnType:T of <root>.id
-    TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?]
-    VALUE_PARAMETER name:x index:0 type:T of <root>.id
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun id <T> (x: T of <root>.id): T of <root>.id declared in <root>'
-        GET_VAR 'x: T of <root>.id declared in <root>.id' type=T of <root>.id origin=null
-  FUN name:test1 visibility:public modality:FINAL <> () returnType:kotlin.String?
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun test1 (): kotlin.String? declared in <root>'
-        CALL 'public final fun checkT <T> (fn: kotlin.Function0<T of <root>.checkT>): T of <root>.checkT declared in <root>' type=kotlin.String? origin=null
-          <T>: kotlin.String?
-          fn: FUN_EXPR type=kotlin.Function0<kotlin.String?> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.String?
-              BLOCK_BODY
-                RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.String? declared in <root>.test1'
-                  CALL 'public open fun foo (): kotlin.String? declared in <root>.J' type=kotlin.String? origin=null
-  FUN name:test2 visibility:public modality:FINAL <> () returnType:kotlin.String
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun test2 (): kotlin.String declared in <root>'
-        TYPE_OP type=kotlin.String origin=IMPLICIT_NOTNULL typeOperand=kotlin.String
-          CALL 'public final fun checkT <T> (fn: kotlin.Function0<T of <root>.checkT>): T of <root>.checkT declared in <root>' type=@[EnhancedNullability] kotlin.String origin=null
-            <T>: @[EnhancedNullability] kotlin.String
-            fn: FUN_EXPR type=kotlin.Function0<@[EnhancedNullability] kotlin.String> origin=LAMBDA
-              FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:@[EnhancedNullability] kotlin.String
-                BLOCK_BODY
-                  RETURN type=kotlin.Nothing from='local final fun <anonymous> (): @[EnhancedNullability] kotlin.String declared in <root>.test2'
-                    CALL 'public open fun nnFoo (): @[EnhancedNullability] kotlin.String declared in <root>.J' type=@[EnhancedNullability] kotlin.String origin=null
-  FUN name:test3 visibility:public modality:FINAL <> () returnType:kotlin.String?
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun test3 (): kotlin.String? declared in <root>'
-        CALL 'public final fun checkTAny <T> (fn: kotlin.Function0<T of <root>.checkTAny>): T of <root>.checkTAny declared in <root>' type=kotlin.String? origin=null
-          <T>: kotlin.String?
-          fn: FUN_EXPR type=kotlin.Function0<kotlin.String?> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.String?
-              BLOCK_BODY
-                RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.String? declared in <root>.test3'
-                  CALL 'public open fun foo (): kotlin.String? declared in <root>.J' type=kotlin.String? origin=null
-  FUN name:test4 visibility:public modality:FINAL <> () returnType:kotlin.String
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun test4 (): kotlin.String declared in <root>'
-        TYPE_OP type=kotlin.String origin=IMPLICIT_NOTNULL typeOperand=kotlin.String
-          CALL 'public final fun checkTAny <T> (fn: kotlin.Function0<T of <root>.checkTAny>): T of <root>.checkTAny declared in <root>' type=@[EnhancedNullability] kotlin.String origin=null
-            <T>: @[EnhancedNullability] kotlin.String
-            fn: FUN_EXPR type=kotlin.Function0<@[EnhancedNullability] kotlin.String> origin=LAMBDA
-              FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:@[EnhancedNullability] kotlin.String
-                BLOCK_BODY
-                  RETURN type=kotlin.Nothing from='local final fun <anonymous> (): @[EnhancedNullability] kotlin.String declared in <root>.test4'
-                    CALL 'public open fun nnFoo (): @[EnhancedNullability] kotlin.String declared in <root>.J' type=@[EnhancedNullability] kotlin.String origin=null

compiler/testData/ir/irText/expressions/nullCheckOnGenericLambdaReturn.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // FILE: nullCheckOnGenericLambdaReturn.kt
 fun checkAny(fn: () -> Any) = fn()
 

compiler/testData/ir/irText/expressions/nullCheckOnLambdaReturn.fir.kt.txt

@@ -12,27 +12,27 @@ fun <T : Any?> id(x: T): T {
 
 fun test1(): Any {
   return checkAny(fn = local fun <anonymous>(): Any {
-    return foo() /*!! String */
+    return foo() /*!! @FlexibleNullability String */
   }
 )
 }
 
 val test2: Function0<Any>
-  field = local fun <anonymous>(): String? {
+  field = local fun <anonymous>(): @FlexibleNullability String? {
     return foo()
   }
 
   get
 
 val test3: Function0<Any>
-  field = local fun <anonymous>(): String? {
+  field = local fun <anonymous>(): @FlexibleNullability String? {
     return foo()
   }
  as Function0<Any>
   get
 
 val test4: Function0<Any>
-  field = id<Function0<String?>>(x = local fun <anonymous>(): String? {
+  field = id<Function0<@FlexibleNullability String?>>(x = local fun <anonymous>(): @FlexibleNullability String? {
     return foo()
   }
 )
@@ -51,3 +51,4 @@ fun test6(): Any? {
   }
 )
 }
+

compiler/testData/ir/irText/expressions/nullCheckOnLambdaReturn.fir.txt

@@ -25,16 +25,16 @@ FILE fqName:<root> fileName:/nullCheckOnLambdaReturn.kt
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Any
               BLOCK_BODY
                 RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Any declared in <root>.test1'
-                  TYPE_OP type=kotlin.String origin=IMPLICIT_NOTNULL typeOperand=kotlin.String
-                    CALL 'public open fun foo (): kotlin.String? declared in <root>.J' type=kotlin.String? origin=null
+                  TYPE_OP type=@[FlexibleNullability] kotlin.String origin=IMPLICIT_NOTNULL typeOperand=@[FlexibleNullability] kotlin.String
+                    CALL 'public open fun foo (): @[FlexibleNullability] kotlin.String? declared in <root>.J' type=@[FlexibleNullability] kotlin.String? origin=null
   PROPERTY name:test2 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test2 type:kotlin.Function0<kotlin.Any> visibility:private [final,static]
       EXPRESSION_BODY
-        FUN_EXPR type=kotlin.Function0<kotlin.String?> origin=LAMBDA
-          FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.String?
+        FUN_EXPR type=kotlin.Function0<@[FlexibleNullability] kotlin.String?> origin=LAMBDA
+          FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:@[FlexibleNullability] kotlin.String?
             BLOCK_BODY
-              RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.String? declared in <root>.test2'
-                CALL 'public open fun foo (): kotlin.String? declared in <root>.J' type=kotlin.String? origin=null
+              RETURN type=kotlin.Nothing from='local final fun <anonymous> (): @[FlexibleNullability] kotlin.String? declared in <root>.test2'
+                CALL 'public open fun foo (): @[FlexibleNullability] kotlin.String? declared in <root>.J' type=@[FlexibleNullability] kotlin.String? origin=null
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test2> visibility:public modality:FINAL <> () returnType:kotlin.Function0<kotlin.Any>
       correspondingProperty: PROPERTY name:test2 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -44,11 +44,11 @@ FILE fqName:<root> fileName:/nullCheckOnLambdaReturn.kt
     FIELD PROPERTY_BACKING_FIELD name:test3 type:kotlin.Function0<kotlin.Any> visibility:private [final,static]
       EXPRESSION_BODY
         TYPE_OP type=kotlin.Function0<kotlin.Any> origin=CAST typeOperand=kotlin.Function0<kotlin.Any>
-          FUN_EXPR type=kotlin.Function0<kotlin.String?> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.String?
+          FUN_EXPR type=kotlin.Function0<@[FlexibleNullability] kotlin.String?> origin=LAMBDA
+            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:@[FlexibleNullability] kotlin.String?
               BLOCK_BODY
-                RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.String? declared in <root>.test3'
-                  CALL 'public open fun foo (): kotlin.String? declared in <root>.J' type=kotlin.String? origin=null
+                RETURN type=kotlin.Nothing from='local final fun <anonymous> (): @[FlexibleNullability] kotlin.String? declared in <root>.test3'
+                  CALL 'public open fun foo (): @[FlexibleNullability] kotlin.String? declared in <root>.J' type=@[FlexibleNullability] kotlin.String? origin=null
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test3> visibility:public modality:FINAL <> () returnType:kotlin.Function0<kotlin.Any>
       correspondingProperty: PROPERTY name:test3 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -57,13 +57,13 @@ FILE fqName:<root> fileName:/nullCheckOnLambdaReturn.kt
   PROPERTY name:test4 visibility:public modality:FINAL [val]
     FIELD PROPERTY_BACKING_FIELD name:test4 type:kotlin.Function0<kotlin.Any> visibility:private [final,static]
       EXPRESSION_BODY
-        CALL 'public final fun id <T> (x: T of <root>.id): T of <root>.id declared in <root>' type=kotlin.Function0<kotlin.String?> origin=null
-          <T>: kotlin.Function0<kotlin.String?>
-          x: FUN_EXPR type=kotlin.Function0<kotlin.String?> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.String?
+        CALL 'public final fun id <T> (x: T of <root>.id): T of <root>.id declared in <root>' type=kotlin.Function0<@[FlexibleNullability] kotlin.String?> origin=null
+          <T>: kotlin.Function0<@[FlexibleNullability] kotlin.String?>
+          x: FUN_EXPR type=kotlin.Function0<@[FlexibleNullability] kotlin.String?> origin=LAMBDA
+            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:@[FlexibleNullability] kotlin.String?
               BLOCK_BODY
-                RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.String? declared in <root>.test4'
-                  CALL 'public open fun foo (): kotlin.String? declared in <root>.J' type=kotlin.String? origin=null
+                RETURN type=kotlin.Nothing from='local final fun <anonymous> (): @[FlexibleNullability] kotlin.String? declared in <root>.test4'
+                  CALL 'public open fun foo (): @[FlexibleNullability] kotlin.String? declared in <root>.J' type=@[FlexibleNullability] kotlin.String? origin=null
     FUN DEFAULT_PROPERTY_ACCESSOR name:<get-test4> visibility:public modality:FINAL <> () returnType:kotlin.Function0<kotlin.Any>
       correspondingProperty: PROPERTY name:test4 visibility:public modality:FINAL [val]
       BLOCK_BODY
@@ -77,7 +77,7 @@ FILE fqName:<root> fileName:/nullCheckOnLambdaReturn.kt
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Any?
               BLOCK_BODY
                 RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Any? declared in <root>.test5'
-                  CALL 'public open fun foo (): kotlin.String? declared in <root>.J' type=kotlin.String? origin=null
+                  CALL 'public open fun foo (): @[FlexibleNullability] kotlin.String? declared in <root>.J' type=@[FlexibleNullability] kotlin.String? origin=null
   FUN name:test6 visibility:public modality:FINAL <> () returnType:kotlin.Any?
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test6 (): kotlin.Any? declared in <root>'

compiler/testData/ir/irText/expressions/sam/arrayAsVarargAfterSamArgument.fir.kt.txt

@@ -6,12 +6,12 @@ fun test(fn: Function0<Unit>, r: Runnable, arr: Array<String>) {
   foo1(r = local fun <anonymous>() {
     return Unit
   }
- /*-> Runnable? */, strs = [*arr]) /*~> Unit */
+ /*-> @FlexibleNullability Runnable? */, strs = [*arr]) /*~> Unit */
   error("") /* ErrorCallExpression */fn; arr;
-  foo1(r = fn /*-> Runnable? */, strs = [*arr]) /*~> Unit */
+  foo1(r = fn /*-> @FlexibleNullability Runnable? */, strs = [*arr]) /*~> Unit */
   foo1(r = r, strs = [""]) /*~> Unit */
   error("") /* ErrorCallExpression */fn; arr;
-  foo1(r = fn /*-> Runnable? */, strs = [*arr]) /*~> Unit */
+  foo1(r = fn /*-> @FlexibleNullability Runnable? */, strs = [*arr]) /*~> Unit */
   foo1(r = r, strs = [*arr]) /*~> Unit */
   val i1: ErrorType = error("") /* ErrorCallExpression */local fun <anonymous>() {
     return Unit
@@ -20,7 +20,7 @@ fun test(fn: Function0<Unit>, r: Runnable, arr: Array<String>) {
   val i2: Test = Test(r = local fun <anonymous>() {
     return Unit
   }
- /*-> Runnable? */, strs = [*arr])
+ /*-> @FlexibleNullability Runnable? */, strs = [*arr])
   val i3: ErrorType = error("") /* ErrorCallExpression */local fun <anonymous>() {
     return Unit
   }
@@ -31,18 +31,18 @@ fun test(fn: Function0<Unit>, r: Runnable, arr: Array<String>) {
   val i4: Test = Test(r1 = r, r2 = local fun <anonymous>() {
     return Unit
   }
- /*-> Runnable? */, strs = [""])
+ /*-> @FlexibleNullability Runnable? */, strs = [""])
   val i5: Test = Test(r1 = local fun <anonymous>() {
     return Unit
   }
- /*-> Runnable? */, r2 = local fun <anonymous>() {
+ /*-> @FlexibleNullability Runnable? */, r2 = local fun <anonymous>() {
     return Unit
   }
- /*-> Runnable? */, strs = [*arr])
+ /*-> @FlexibleNullability Runnable? */, strs = [*arr])
   val i6: Test = Test(r1 = r, r2 = local fun <anonymous>() {
     return Unit
   }
- /*-> Runnable? */, strs = [*arr])
+ /*-> @FlexibleNullability Runnable? */, strs = [*arr])
   error("") /* ErrorCallExpression */local fun <anonymous>() {
     return Unit
   }

compiler/testData/ir/irText/expressions/sam/arrayAsVarargAfterSamArgument.fir.txt

@@ -4,7 +4,7 @@ FILE fqName:<root> fileName:/arrayAsVarargAfterSamArgument.kt
     VALUE_PARAMETER name:r index:1 type:java.lang.Runnable
     VALUE_PARAMETER name:arr index:2 type:kotlin.Array<kotlin.String>
     BLOCK_BODY
-      ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /Test.foo1>#' type=kotlin.String?
+      ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /Test.foo1>#' type=@[FlexibleNullability] kotlin.String?
         FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
           FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
             BLOCK_BODY
@@ -12,45 +12,45 @@ FILE fqName:<root> fileName:/arrayAsVarargAfterSamArgument.kt
                 GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
         GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public open fun foo1 (r: java.lang.Runnable?, vararg strs: kotlin.String?): kotlin.String? declared in <root>.Test' type=kotlin.String? origin=null
-          r: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        CALL 'public open fun foo1 (r: @[FlexibleNullability] java.lang.Runnable?, vararg strs: @[FlexibleNullability] kotlin.String?): @[FlexibleNullability] kotlin.String? declared in <root>.Test' type=@[FlexibleNullability] kotlin.String? origin=null
+          r: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
             FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
                 BLOCK_BODY
                   RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Unit declared in <root>.test'
                     GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
-          strs: VARARG type=kotlin.Array<out kotlin.String?>? varargElementType=kotlin.String?
+          strs: VARARG type=@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.String?>? varargElementType=@[FlexibleNullability] kotlin.String?
             SPREAD_ELEMENT
               GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
-      ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /Test.foo1>#' type=kotlin.String?
+      ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /Test.foo1>#' type=@[FlexibleNullability] kotlin.String?
         GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
         GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public open fun foo1 (r: java.lang.Runnable?, vararg strs: kotlin.String?): kotlin.String? declared in <root>.Test' type=kotlin.String? origin=null
-          r: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        CALL 'public open fun foo1 (r: @[FlexibleNullability] java.lang.Runnable?, vararg strs: @[FlexibleNullability] kotlin.String?): @[FlexibleNullability] kotlin.String? declared in <root>.Test' type=@[FlexibleNullability] kotlin.String? origin=null
+          r: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
             GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
-          strs: VARARG type=kotlin.Array<out kotlin.String?>? varargElementType=kotlin.String?
+          strs: VARARG type=@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.String?>? varargElementType=@[FlexibleNullability] kotlin.String?
             SPREAD_ELEMENT
               GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public open fun foo1 (r: java.lang.Runnable?, vararg strs: kotlin.String?): kotlin.String? declared in <root>.Test' type=kotlin.String? origin=null
+        CALL 'public open fun foo1 (r: @[FlexibleNullability] java.lang.Runnable?, vararg strs: @[FlexibleNullability] kotlin.String?): @[FlexibleNullability] kotlin.String? declared in <root>.Test' type=@[FlexibleNullability] kotlin.String? origin=null
           r: GET_VAR 'r: java.lang.Runnable declared in <root>.test' type=java.lang.Runnable origin=null
-          strs: VARARG type=kotlin.Array<out kotlin.String?>? varargElementType=kotlin.String?
+          strs: VARARG type=@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.String?>? varargElementType=@[FlexibleNullability] kotlin.String?
             CONST String type=kotlin.String value=""
-      ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /Test.foo1>#' type=kotlin.String?
+      ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /Test.foo1>#' type=@[FlexibleNullability] kotlin.String?
         GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
         GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public open fun foo1 (r: java.lang.Runnable?, vararg strs: kotlin.String?): kotlin.String? declared in <root>.Test' type=kotlin.String? origin=null
-          r: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        CALL 'public open fun foo1 (r: @[FlexibleNullability] java.lang.Runnable?, vararg strs: @[FlexibleNullability] kotlin.String?): @[FlexibleNullability] kotlin.String? declared in <root>.Test' type=@[FlexibleNullability] kotlin.String? origin=null
+          r: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
             GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
-          strs: VARARG type=kotlin.Array<out kotlin.String?>? varargElementType=kotlin.String?
+          strs: VARARG type=@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.String?>? varargElementType=@[FlexibleNullability] kotlin.String?
             SPREAD_ELEMENT
               GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CALL 'public open fun foo1 (r: java.lang.Runnable?, vararg strs: kotlin.String?): kotlin.String? declared in <root>.Test' type=kotlin.String? origin=null
+        CALL 'public open fun foo1 (r: @[FlexibleNullability] java.lang.Runnable?, vararg strs: @[FlexibleNullability] kotlin.String?): @[FlexibleNullability] kotlin.String? declared in <root>.Test' type=@[FlexibleNullability] kotlin.String? origin=null
           r: GET_VAR 'r: java.lang.Runnable declared in <root>.test' type=java.lang.Runnable origin=null
-          strs: VARARG type=kotlin.Array<out kotlin.String?>? varargElementType=kotlin.String?
+          strs: VARARG type=@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.String?>? varargElementType=@[FlexibleNullability] kotlin.String?
             SPREAD_ELEMENT
               GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       VAR name:i1 type:IrErrorType(null) [val]
@@ -62,14 +62,14 @@ FILE fqName:<root> fileName:/arrayAsVarargAfterSamArgument.kt
                   GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
           GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       VAR name:i2 type:<root>.Test [val]
-        CONSTRUCTOR_CALL 'public constructor <init> (r: java.lang.Runnable?, vararg strs: kotlin.String?) declared in <root>.Test' type=<root>.Test origin=null
-          r: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        CONSTRUCTOR_CALL 'public constructor <init> (r: @[FlexibleNullability] java.lang.Runnable?, vararg strs: @[FlexibleNullability] kotlin.String?) declared in <root>.Test' type=<root>.Test origin=null
+          r: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
             FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
                 BLOCK_BODY
                   RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Unit declared in <root>.test'
                     GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
-          strs: VARARG type=kotlin.Array<out kotlin.String?>? varargElementType=kotlin.String?
+          strs: VARARG type=@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.String?>? varargElementType=@[FlexibleNullability] kotlin.String?
             SPREAD_ELEMENT
               GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       VAR name:i3 type:IrErrorType(null) [val]
@@ -86,43 +86,43 @@ FILE fqName:<root> fileName:/arrayAsVarargAfterSamArgument.kt
                   GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
           GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       VAR name:i4 type:<root>.Test [val]
-        CONSTRUCTOR_CALL 'public constructor <init> (r1: java.lang.Runnable?, r2: java.lang.Runnable?, vararg strs: kotlin.String?) declared in <root>.Test' type=<root>.Test origin=null
+        CONSTRUCTOR_CALL 'public constructor <init> (r1: @[FlexibleNullability] java.lang.Runnable?, r2: @[FlexibleNullability] java.lang.Runnable?, vararg strs: @[FlexibleNullability] kotlin.String?) declared in <root>.Test' type=<root>.Test origin=null
           r1: GET_VAR 'r: java.lang.Runnable declared in <root>.test' type=java.lang.Runnable origin=null
-          r2: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+          r2: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
             FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
                 BLOCK_BODY
                   RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Unit declared in <root>.test'
                     GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
-          strs: VARARG type=kotlin.Array<out kotlin.String?>? varargElementType=kotlin.String?
+          strs: VARARG type=@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.String?>? varargElementType=@[FlexibleNullability] kotlin.String?
             CONST String type=kotlin.String value=""
       VAR name:i5 type:<root>.Test [val]
-        CONSTRUCTOR_CALL 'public constructor <init> (r1: java.lang.Runnable?, r2: java.lang.Runnable?, vararg strs: kotlin.String?) declared in <root>.Test' type=<root>.Test origin=null
-          r1: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        CONSTRUCTOR_CALL 'public constructor <init> (r1: @[FlexibleNullability] java.lang.Runnable?, r2: @[FlexibleNullability] java.lang.Runnable?, vararg strs: @[FlexibleNullability] kotlin.String?) declared in <root>.Test' type=<root>.Test origin=null
+          r1: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
             FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
                 BLOCK_BODY
                   RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Unit declared in <root>.test'
                     GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
-          r2: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+          r2: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
             FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
                 BLOCK_BODY
                   RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Unit declared in <root>.test'
                     GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
-          strs: VARARG type=kotlin.Array<out kotlin.String?>? varargElementType=kotlin.String?
+          strs: VARARG type=@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.String?>? varargElementType=@[FlexibleNullability] kotlin.String?
             SPREAD_ELEMENT
               GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       VAR name:i6 type:<root>.Test [val]
-        CONSTRUCTOR_CALL 'public constructor <init> (r1: java.lang.Runnable?, r2: java.lang.Runnable?, vararg strs: kotlin.String?) declared in <root>.Test' type=<root>.Test origin=null
+        CONSTRUCTOR_CALL 'public constructor <init> (r1: @[FlexibleNullability] java.lang.Runnable?, r2: @[FlexibleNullability] java.lang.Runnable?, vararg strs: @[FlexibleNullability] kotlin.String?) declared in <root>.Test' type=<root>.Test origin=null
           r1: GET_VAR 'r: java.lang.Runnable declared in <root>.test' type=java.lang.Runnable origin=null
-          r2: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+          r2: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
             FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
               FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
                 BLOCK_BODY
                   RETURN type=kotlin.Nothing from='local final fun <anonymous> (): kotlin.Unit declared in <root>.test'
                     GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
-          strs: VARARG type=kotlin.Array<out kotlin.String?>? varargElementType=kotlin.String?
+          strs: VARARG type=@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.String?>? varargElementType=@[FlexibleNullability] kotlin.String?
             SPREAD_ELEMENT
               GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       ERROR_CALL 'Unresolved reference: <Unresolved name: foo2>#' type=IrErrorType(null)

compiler/testData/ir/irText/expressions/sam/genericSamProjectedOut.fir.kt.txt

@@ -1,15 +1,15 @@
 fun test(a: SomeJavaClass<out String>) {
-  a.someFunction(hello = local fun <anonymous>(it: String?) {
+  a.someFunction(hello = local fun <anonymous>(it: @FlexibleNullability String?) {
     return Unit
   }
- /*-> Hello<String?>? */)
-  a.plus(hello = local fun <anonymous>(it: String?) {
+ /*-> @FlexibleNullability Hello<@FlexibleNullability String?>? */)
+  a.plus(hello = local fun <anonymous>(it: @FlexibleNullability String?) {
     return Unit
   }
- /*-> Hello<String?>? */)
-  a.get(hello = local fun <anonymous>(it: String?) {
+ /*-> @FlexibleNullability Hello<@FlexibleNullability String?>? */)
+  a.get(hello = local fun <anonymous>(it: @FlexibleNullability String?) {
     return Unit
   }
- /*-> Hello<String?>? */)
+ /*-> @FlexibleNullability Hello<@FlexibleNullability String?>? */)
 }
 

compiler/testData/ir/irText/expressions/sam/genericSamProjectedOut.fir.txt

@@ -2,30 +2,30 @@ FILE fqName:<root> fileName:/genericSamProjectedOut.kt
   FUN name:test visibility:public modality:FINAL <> (a:example.SomeJavaClass<out kotlin.String>) returnType:kotlin.Unit
     VALUE_PARAMETER name:a index:0 type:example.SomeJavaClass<out kotlin.String>
     BLOCK_BODY
-      CALL 'public open fun someFunction (hello: example.Hello<A of example.SomeJavaClass?>?): kotlin.Unit declared in example.SomeJavaClass' type=kotlin.Unit origin=null
+      CALL 'public open fun someFunction (hello: @[FlexibleNullability] example.Hello<@[FlexibleNullability] A of example.SomeJavaClass?>?): kotlin.Unit declared in example.SomeJavaClass' type=kotlin.Unit origin=null
         $this: GET_VAR 'a: example.SomeJavaClass<out kotlin.String> declared in <root>.test' type=example.SomeJavaClass<out kotlin.String> origin=null
-        hello: TYPE_OP type=example.Hello<kotlin.String?>? origin=SAM_CONVERSION typeOperand=example.Hello<kotlin.String?>?
-          FUN_EXPR type=kotlin.Function1<kotlin.String?, kotlin.Unit> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (it:kotlin.String?) returnType:kotlin.Unit
-              VALUE_PARAMETER name:it index:0 type:kotlin.String?
+        hello: TYPE_OP type=@[FlexibleNullability] example.Hello<@[FlexibleNullability] kotlin.String?>? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] example.Hello<@[FlexibleNullability] kotlin.String?>?
+          FUN_EXPR type=kotlin.Function1<@[FlexibleNullability] kotlin.String?, kotlin.Unit> origin=LAMBDA
+            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (it:@[FlexibleNullability] kotlin.String?) returnType:kotlin.Unit
+              VALUE_PARAMETER name:it index:0 type:@[FlexibleNullability] kotlin.String?
               BLOCK_BODY
-                RETURN type=kotlin.Nothing from='local final fun <anonymous> (it: kotlin.String?): kotlin.Unit declared in <root>.test'
+                RETURN type=kotlin.Nothing from='local final fun <anonymous> (it: @[FlexibleNullability] kotlin.String?): kotlin.Unit declared in <root>.test'
                   GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
-      CALL 'public open fun plus (hello: example.Hello<A of example.SomeJavaClass?>?): kotlin.Unit [operator] declared in example.SomeJavaClass' type=kotlin.Unit origin=PLUS
+      CALL 'public open fun plus (hello: @[FlexibleNullability] example.Hello<@[FlexibleNullability] A of example.SomeJavaClass?>?): kotlin.Unit [operator] declared in example.SomeJavaClass' type=kotlin.Unit origin=PLUS
         $this: GET_VAR 'a: example.SomeJavaClass<out kotlin.String> declared in <root>.test' type=example.SomeJavaClass<out kotlin.String> origin=null
-        hello: TYPE_OP type=example.Hello<kotlin.String?>? origin=SAM_CONVERSION typeOperand=example.Hello<kotlin.String?>?
-          FUN_EXPR type=kotlin.Function1<kotlin.String?, kotlin.Unit> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (it:kotlin.String?) returnType:kotlin.Unit
-              VALUE_PARAMETER name:it index:0 type:kotlin.String?
+        hello: TYPE_OP type=@[FlexibleNullability] example.Hello<@[FlexibleNullability] kotlin.String?>? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] example.Hello<@[FlexibleNullability] kotlin.String?>?
+          FUN_EXPR type=kotlin.Function1<@[FlexibleNullability] kotlin.String?, kotlin.Unit> origin=LAMBDA
+            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (it:@[FlexibleNullability] kotlin.String?) returnType:kotlin.Unit
+              VALUE_PARAMETER name:it index:0 type:@[FlexibleNullability] kotlin.String?
               BLOCK_BODY
-                RETURN type=kotlin.Nothing from='local final fun <anonymous> (it: kotlin.String?): kotlin.Unit declared in <root>.test'
+                RETURN type=kotlin.Nothing from='local final fun <anonymous> (it: @[FlexibleNullability] kotlin.String?): kotlin.Unit declared in <root>.test'
                   GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit
-      CALL 'public open fun get (hello: example.Hello<A of example.SomeJavaClass?>?): kotlin.Unit [operator] declared in example.SomeJavaClass' type=kotlin.Unit origin=null
+      CALL 'public open fun get (hello: @[FlexibleNullability] example.Hello<@[FlexibleNullability] A of example.SomeJavaClass?>?): kotlin.Unit [operator] declared in example.SomeJavaClass' type=kotlin.Unit origin=null
         $this: GET_VAR 'a: example.SomeJavaClass<out kotlin.String> declared in <root>.test' type=example.SomeJavaClass<out kotlin.String> origin=null
-        hello: TYPE_OP type=example.Hello<kotlin.String?>? origin=SAM_CONVERSION typeOperand=example.Hello<kotlin.String?>?
-          FUN_EXPR type=kotlin.Function1<kotlin.String?, kotlin.Unit> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (it:kotlin.String?) returnType:kotlin.Unit
-              VALUE_PARAMETER name:it index:0 type:kotlin.String?
+        hello: TYPE_OP type=@[FlexibleNullability] example.Hello<@[FlexibleNullability] kotlin.String?>? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] example.Hello<@[FlexibleNullability] kotlin.String?>?
+          FUN_EXPR type=kotlin.Function1<@[FlexibleNullability] kotlin.String?, kotlin.Unit> origin=LAMBDA
+            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (it:@[FlexibleNullability] kotlin.String?) returnType:kotlin.Unit
+              VALUE_PARAMETER name:it index:0 type:@[FlexibleNullability] kotlin.String?
               BLOCK_BODY
-                RETURN type=kotlin.Nothing from='local final fun <anonymous> (it: kotlin.String?): kotlin.Unit declared in <root>.test'
+                RETURN type=kotlin.Nothing from='local final fun <anonymous> (it: @[FlexibleNullability] kotlin.String?): kotlin.Unit declared in <root>.test'
                   GET_OBJECT 'CLASS IR_EXTERNAL_DECLARATION_STUB OBJECT name:Unit modality:FINAL visibility:public superTypes:[kotlin.Any]' type=kotlin.Unit

compiler/testData/ir/irText/expressions/sam/genericSamSmartcast.fir.kt.txt

@@ -1,9 +1,9 @@
 fun f(x: Any): String {
   when {
-    x is A<*> -> return x /*as A<*> */.call(block = local fun <anonymous>(y: Any?): String? {
+    x is A<*> -> return x /*as A<*> */.call(block = local fun <anonymous>(y: Any?): @FlexibleNullability String? {
       return "OK"
     }
- /*-> I<Any?>? */) /*!! String */
+ /*-> @FlexibleNullability I<@FlexibleNullability Any?>? */) /*!! @FlexibleNullability String */
   }
   return "Fail"
 }

compiler/testData/ir/irText/expressions/sam/genericSamSmartcast.fir.txt

@@ -7,16 +7,16 @@ FILE fqName:<root> fileName:/genericSamSmartcast.kt
           if: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=<root>.A<*>
             GET_VAR 'x: kotlin.Any declared in <root>.f' type=kotlin.Any origin=null
           then: RETURN type=kotlin.Nothing from='public final fun f (x: kotlin.Any): kotlin.String declared in <root>'
-            TYPE_OP type=kotlin.String origin=IMPLICIT_NOTNULL typeOperand=kotlin.String
-              CALL 'public open fun call (block: <root>.A.I<T of <root>.A?>?): kotlin.String? declared in <root>.A' type=kotlin.String? origin=null
+            TYPE_OP type=@[FlexibleNullability] kotlin.String origin=IMPLICIT_NOTNULL typeOperand=@[FlexibleNullability] kotlin.String
+              CALL 'public open fun call (block: @[FlexibleNullability] <root>.A.I<@[FlexibleNullability] T of <root>.A?>?): @[FlexibleNullability] kotlin.String? declared in <root>.A' type=@[FlexibleNullability] kotlin.String? origin=null
                 $this: TYPE_OP type=<root>.A<*> origin=IMPLICIT_CAST typeOperand=<root>.A<*>
                   GET_VAR 'x: kotlin.Any declared in <root>.f' type=kotlin.Any origin=null
-                block: TYPE_OP type=<root>.A.I<kotlin.Any?>? origin=SAM_CONVERSION typeOperand=<root>.A.I<kotlin.Any?>?
-                  FUN_EXPR type=kotlin.Function1<kotlin.Any?, kotlin.String?> origin=LAMBDA
-                    FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (y:kotlin.Any?) returnType:kotlin.String?
+                block: TYPE_OP type=@[FlexibleNullability] <root>.A.I<@[FlexibleNullability] kotlin.Any?>? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] <root>.A.I<@[FlexibleNullability] kotlin.Any?>?
+                  FUN_EXPR type=kotlin.Function1<kotlin.Any?, @[FlexibleNullability] kotlin.String?> origin=LAMBDA
+                    FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (y:kotlin.Any?) returnType:@[FlexibleNullability] kotlin.String?
                       VALUE_PARAMETER name:y index:0 type:kotlin.Any?
                       BLOCK_BODY
-                        RETURN type=kotlin.Nothing from='local final fun <anonymous> (y: kotlin.Any?): kotlin.String? declared in <root>.f'
+                        RETURN type=kotlin.Nothing from='local final fun <anonymous> (y: kotlin.Any?): @[FlexibleNullability] kotlin.String? declared in <root>.f'
                           CONST String type=kotlin.String value="OK"
       RETURN type=kotlin.Nothing from='public final fun f (x: kotlin.Any): kotlin.String declared in <root>'
         CONST String type=kotlin.String value="Fail"

compiler/testData/ir/irText/expressions/sam/samByProjectedType.fir.kt.txt

@@ -1,6 +1,7 @@
 fun test1() {
-  bar(j = local fun <anonymous>(x: Any): Any? {
+  bar(j = local fun <anonymous>(x: Any): @FlexibleNullability Any? {
     return x
   }
- /*-> J<*>? */)
+ /*-> @FlexibleNullability J<*>? */)
 }
+

compiler/testData/ir/irText/expressions/sam/samByProjectedType.fir.txt

@@ -1,11 +1,11 @@
 FILE fqName:<root> fileName:/samByProjectedType.kt
   FUN name:test1 visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
-      CALL 'public open fun bar (j: <root>.J<*>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
-        j: TYPE_OP type=<root>.J<*>? origin=SAM_CONVERSION typeOperand=<root>.J<*>?
-          FUN_EXPR type=kotlin.Function1<kotlin.Any, kotlin.Any?> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (x:kotlin.Any) returnType:kotlin.Any?
+      CALL 'public open fun bar (j: @[FlexibleNullability] <root>.J<*>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
+        j: TYPE_OP type=@[FlexibleNullability] <root>.J<*>? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] <root>.J<*>?
+          FUN_EXPR type=kotlin.Function1<kotlin.Any, @[FlexibleNullability] kotlin.Any?> origin=LAMBDA
+            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (x:kotlin.Any) returnType:@[FlexibleNullability] kotlin.Any?
               VALUE_PARAMETER name:x index:0 type:kotlin.Any
               BLOCK_BODY
-                RETURN type=kotlin.Nothing from='local final fun <anonymous> (x: kotlin.Any): kotlin.Any? declared in <root>.test1'
+                RETURN type=kotlin.Nothing from='local final fun <anonymous> (x: kotlin.Any): @[FlexibleNullability] kotlin.Any? declared in <root>.test1'
                   GET_VAR 'x: kotlin.Any declared in <root>.test1.<anonymous>' type=kotlin.Any origin=null

compiler/testData/ir/irText/expressions/sam/samConstructors.fir.kt.txt

@@ -16,9 +16,10 @@ fun test3(): Runnable {
   return ::foo /*-> Runnable */
 }
 
-fun test4(): Comparator<Int?> {
-  return local fun <anonymous>(a: Int?, b: Int?): Int {
-    return a.minus(other = b /*!! Int */)
+fun test4(): Comparator<@FlexibleNullability Int?> {
+  return local fun <anonymous>(a: @FlexibleNullability Int?, b: @FlexibleNullability Int?): Int {
+    return a.minus(other = b /*!! @FlexibleNullability Int */)
   }
- /*-> Comparator<Int?> */
+ /*-> Comparator<@FlexibleNullability Int?> */
 }
+

compiler/testData/ir/irText/expressions/sam/samConstructors.fir.txt

@@ -21,17 +21,17 @@ FILE fqName:<root> fileName:/samConstructors.kt
       RETURN type=kotlin.Nothing from='public final fun test3 (): java.lang.Runnable declared in <root>'
         TYPE_OP type=java.lang.Runnable origin=SAM_CONVERSION typeOperand=java.lang.Runnable
           FUNCTION_REFERENCE 'public final fun foo (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
-  FUN name:test4 visibility:public modality:FINAL <> () returnType:java.util.Comparator<kotlin.Int?>
+  FUN name:test4 visibility:public modality:FINAL <> () returnType:java.util.Comparator<@[FlexibleNullability] kotlin.Int?>
     BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun test4 (): java.util.Comparator<kotlin.Int?> declared in <root>'
-        TYPE_OP type=java.util.Comparator<kotlin.Int?> origin=SAM_CONVERSION typeOperand=java.util.Comparator<kotlin.Int?>
-          FUN_EXPR type=kotlin.Function2<kotlin.Int?, kotlin.Int?, kotlin.Int> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (a:kotlin.Int?, b:kotlin.Int?) returnType:kotlin.Int
-              VALUE_PARAMETER name:a index:0 type:kotlin.Int?
-              VALUE_PARAMETER name:b index:1 type:kotlin.Int?
+      RETURN type=kotlin.Nothing from='public final fun test4 (): java.util.Comparator<@[FlexibleNullability] kotlin.Int?> declared in <root>'
+        TYPE_OP type=java.util.Comparator<@[FlexibleNullability] kotlin.Int?> origin=SAM_CONVERSION typeOperand=java.util.Comparator<@[FlexibleNullability] kotlin.Int?>
+          FUN_EXPR type=kotlin.Function2<@[FlexibleNullability] kotlin.Int?, @[FlexibleNullability] kotlin.Int?, kotlin.Int> origin=LAMBDA
+            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (a:@[FlexibleNullability] kotlin.Int?, b:@[FlexibleNullability] kotlin.Int?) returnType:kotlin.Int
+              VALUE_PARAMETER name:a index:0 type:@[FlexibleNullability] kotlin.Int?
+              VALUE_PARAMETER name:b index:1 type:@[FlexibleNullability] kotlin.Int?
               BLOCK_BODY
-                RETURN type=kotlin.Nothing from='local final fun <anonymous> (a: kotlin.Int?, b: kotlin.Int?): kotlin.Int declared in <root>.test4'
+                RETURN type=kotlin.Nothing from='local final fun <anonymous> (a: @[FlexibleNullability] kotlin.Int?, b: @[FlexibleNullability] kotlin.Int?): kotlin.Int declared in <root>.test4'
                   CALL 'public final fun minus (other: kotlin.Int): kotlin.Int [operator] declared in kotlin.Int' type=kotlin.Int origin=MINUS
-                    $this: GET_VAR 'a: kotlin.Int? declared in <root>.test4.<anonymous>' type=kotlin.Int? origin=null
-                    other: TYPE_OP type=kotlin.Int origin=IMPLICIT_NOTNULL typeOperand=kotlin.Int
-                      GET_VAR 'b: kotlin.Int? declared in <root>.test4.<anonymous>' type=kotlin.Int? origin=null
+                    $this: GET_VAR 'a: @[FlexibleNullability] kotlin.Int? declared in <root>.test4.<anonymous>' type=@[FlexibleNullability] kotlin.Int? origin=null
+                    other: TYPE_OP type=@[FlexibleNullability] kotlin.Int origin=IMPLICIT_NOTNULL typeOperand=@[FlexibleNullability] kotlin.Int
+                      GET_VAR 'b: @[FlexibleNullability] kotlin.Int? declared in <root>.test4.<anonymous>' type=@[FlexibleNullability] kotlin.Int? origin=null

compiler/testData/ir/irText/expressions/sam/samConversionInGenericConstructorCall.fir.kt.txt

@@ -1,8 +0,0 @@
-fun test1(f: Function1<String, String>): C<String?> {
-  return C<String?>(jxx = f /*-> J<String?, String?>? */)
-}
-
-fun test2(x: Any) {
-  x as Function1<String, String> /*~> Unit */
-  C<String?>(jxx = x /*as Function1<String, String> */ /*-> J<String?, String?>? */) /*~> Unit */
-}

compiler/testData/ir/irText/expressions/sam/samConversionInGenericConstructorCall.fir.txt

@@ -1,21 +0,0 @@
-FILE fqName:<root> fileName:/samConversionInGenericConstructorCall.kt
-  FUN name:test1 visibility:public modality:FINAL <> (f:kotlin.Function1<kotlin.String, kotlin.String>) returnType:<root>.C<kotlin.String?>
-    VALUE_PARAMETER name:f index:0 type:kotlin.Function1<kotlin.String, kotlin.String>
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun test1 (f: kotlin.Function1<kotlin.String, kotlin.String>): <root>.C<kotlin.String?> declared in <root>'
-        CONSTRUCTOR_CALL 'public constructor <init> (jxx: <root>.J<X of <root>.C?, X of <root>.C?>?) declared in <root>.C' type=<root>.C<kotlin.String?> origin=null
-          <class: X>: kotlin.String?
-          jxx: TYPE_OP type=<root>.J<kotlin.String?, kotlin.String?>? origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?, kotlin.String?>?
-            GET_VAR 'f: kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test1' type=kotlin.Function1<kotlin.String, kotlin.String> origin=null
-  FUN name:test2 visibility:public modality:FINAL <> (x:kotlin.Any) returnType:kotlin.Unit
-    VALUE_PARAMETER name:x index:0 type:kotlin.Any
-    BLOCK_BODY
-      TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        TYPE_OP type=kotlin.Function1<kotlin.String, kotlin.String> origin=CAST typeOperand=kotlin.Function1<kotlin.String, kotlin.String>
-          GET_VAR 'x: kotlin.Any declared in <root>.test2' type=kotlin.Any origin=null
-      TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CONSTRUCTOR_CALL 'public constructor <init> (jxx: <root>.J<X of <root>.C?, X of <root>.C?>?) declared in <root>.C' type=<root>.C<kotlin.String?> origin=null
-          <class: X>: kotlin.String?
-          jxx: TYPE_OP type=<root>.J<kotlin.String?, kotlin.String?>? origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?, kotlin.String?>?
-            TYPE_OP type=kotlin.Function1<kotlin.String, kotlin.String> origin=IMPLICIT_CAST typeOperand=kotlin.Function1<kotlin.String, kotlin.String>
-              GET_VAR 'x: kotlin.Any declared in <root>.test2' type=kotlin.Any origin=null

compiler/testData/ir/irText/expressions/sam/samConversionInGenericConstructorCall.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !LANGUAGE: +NewInference +SamConversionPerArgument +ProhibitVarargAsArrayAfterSamArgument
 // FILE: samConversionInGenericConstructorCall.kt
 fun test1(f: (String) -> String) = C(f)

compiler/testData/ir/irText/expressions/sam/samConversionInGenericConstructorCall_NI.fir.kt.txt

@@ -1,42 +0,0 @@
-fun test3(f1: Function1<String, String>, f2: Function1<Int, String>): D<Int?, String?> {
-  return C<String?>(jxx = f1 /*-> J<String?, String?>? */).D<Int?>(jxy = f2 /*-> J<String?, Int?>? */)
-}
-
-class Outer<T1 : Any?> {
-  constructor(j11: J<T1, T1>) /* primary */ {
-    super/*Any*/()
-    /* <init>() */
-
-  }
-
-  val j11: J<T1, T1>
-    field = j11
-    get
-
-  inner class Inner<T2 : Any?> {
-    constructor(j12: J<T1, T2>) /* primary */ {
-      super/*Any*/()
-      /* <init>() */
-
-    }
-
-    val j12: J<T1, T2>
-      field = j12
-      get
-
-  }
-
-}
-
-fun test4(f: Function1<String, String>, g: Function1<Any, String>): Inner<Any?, String?> {
-  return Outer<String?>(j11 = f /*-> J<String?, String?> */).Inner<Any?>(j12 = g /*-> J<String?, Any?> */)
-}
-
-fun testGenericJavaCtor1(f: Function1<String, Int>): G<String?> {
-  return G<String?, Int?>(x = f /*-> J<Int?, String?>? */)
-}
-
-fun testGenericJavaCtor2(x: Any) {
-  x as Function1<String, Int> /*~> Unit */
-  G<String?, Int?>(x = x /*as Function1<String, Int> */ /*-> J<Int?, String?>? */) /*~> Unit */
-}

compiler/testData/ir/irText/expressions/sam/samConversionInGenericConstructorCall_NI.fir.txt

@@ -1,114 +0,0 @@
-FILE fqName:<root> fileName:/samConversionInGenericConstructorCall_NI.kt
-  FUN name:test3 visibility:public modality:FINAL <> (f1:kotlin.Function1<kotlin.String, kotlin.String>, f2:kotlin.Function1<kotlin.Int, kotlin.String>) returnType:<root>.C.D<kotlin.Int?, kotlin.String?>
-    VALUE_PARAMETER name:f1 index:0 type:kotlin.Function1<kotlin.String, kotlin.String>
-    VALUE_PARAMETER name:f2 index:1 type:kotlin.Function1<kotlin.Int, kotlin.String>
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun test3 (f1: kotlin.Function1<kotlin.String, kotlin.String>, f2: kotlin.Function1<kotlin.Int, kotlin.String>): <root>.C.D<kotlin.Int?, kotlin.String?> declared in <root>'
-        CONSTRUCTOR_CALL 'public constructor <init> (jxy: <root>.J<X of <root>.C?, Y of <root>.C.D?>?) declared in <root>.C.D' type=<root>.C.D<kotlin.Int?, kotlin.String?> origin=null
-          <class: Y>: kotlin.Int?
-          $outer: CONSTRUCTOR_CALL 'public constructor <init> (jxx: <root>.J<X of <root>.C?, X of <root>.C?>?) declared in <root>.C' type=<root>.C<kotlin.String?> origin=null
-            <class: X>: kotlin.String?
-            jxx: TYPE_OP type=<root>.J<kotlin.String?, kotlin.String?>? origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?, kotlin.String?>?
-              GET_VAR 'f1: kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test3' type=kotlin.Function1<kotlin.String, kotlin.String> origin=null
-          jxy: TYPE_OP type=<root>.J<kotlin.String?, kotlin.Int?>? origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?, kotlin.Int?>?
-            GET_VAR 'f2: kotlin.Function1<kotlin.Int, kotlin.String> declared in <root>.test3' type=kotlin.Function1<kotlin.Int, kotlin.String> origin=null
-  CLASS CLASS name:Outer modality:FINAL visibility:public superTypes:[kotlin.Any]
-    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Outer<T1 of <root>.Outer>
-    TYPE_PARAMETER name:T1 index:0 variance: superTypes:[kotlin.Any?]
-    CONSTRUCTOR visibility:public <> (j11:<root>.J<T1 of <root>.Outer, T1 of <root>.Outer>) returnType:<root>.Outer<T1 of <root>.Outer> [primary]
-      VALUE_PARAMETER name:j11 index:0 type:<root>.J<T1 of <root>.Outer, T1 of <root>.Outer>
-      BLOCK_BODY
-        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
-        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:Outer modality:FINAL visibility:public superTypes:[kotlin.Any]'
-    PROPERTY name:j11 visibility:public modality:FINAL [val]
-      FIELD PROPERTY_BACKING_FIELD name:j11 type:<root>.J<T1 of <root>.Outer, T1 of <root>.Outer> visibility:private [final]
-        EXPRESSION_BODY
-          GET_VAR 'j11: <root>.J<T1 of <root>.Outer, T1 of <root>.Outer> declared in <root>.Outer.<init>' type=<root>.J<T1 of <root>.Outer, T1 of <root>.Outer> origin=INITIALIZE_PROPERTY_FROM_PARAMETER
-      FUN DEFAULT_PROPERTY_ACCESSOR name:<get-j11> visibility:public modality:FINAL <> ($this:<root>.Outer<T1 of <root>.Outer>) returnType:<root>.J<T1 of <root>.Outer, T1 of <root>.Outer>
-        correspondingProperty: PROPERTY name:j11 visibility:public modality:FINAL [val]
-        $this: VALUE_PARAMETER name:<this> type:<root>.Outer<T1 of <root>.Outer>
-        BLOCK_BODY
-          RETURN type=kotlin.Nothing from='public final fun <get-j11> (): <root>.J<T1 of <root>.Outer, T1 of <root>.Outer> declared in <root>.Outer'
-            GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:j11 type:<root>.J<T1 of <root>.Outer, T1 of <root>.Outer> visibility:private [final]' type=<root>.J<T1 of <root>.Outer, T1 of <root>.Outer> origin=null
-              receiver: GET_VAR '<this>: <root>.Outer<T1 of <root>.Outer> declared in <root>.Outer.<get-j11>' type=<root>.Outer<T1 of <root>.Outer> origin=null
-    CLASS CLASS name:Inner modality:FINAL visibility:public [inner] superTypes:[kotlin.Any]
-      $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Outer.Inner<T2 of <root>.Outer.Inner, T1 of <root>.Outer>
-      TYPE_PARAMETER name:T2 index:0 variance: superTypes:[kotlin.Any?]
-      CONSTRUCTOR visibility:public <> ($this:<root>.Outer<T1 of <root>.Outer>, j12:<root>.J<T1 of <root>.Outer, T2 of <root>.Outer.Inner>) returnType:<root>.Outer.Inner<T2 of <root>.Outer.Inner, T1 of <root>.Outer> [primary]
-        $outer: VALUE_PARAMETER name:<this> type:<root>.Outer<T1 of <root>.Outer>
-        VALUE_PARAMETER name:j12 index:0 type:<root>.J<T1 of <root>.Outer, T2 of <root>.Outer.Inner>
-        BLOCK_BODY
-          DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
-          INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:Inner modality:FINAL visibility:public [inner] superTypes:[kotlin.Any]'
-      PROPERTY name:j12 visibility:public modality:FINAL [val]
-        FIELD PROPERTY_BACKING_FIELD name:j12 type:<root>.J<T1 of <root>.Outer, T2 of <root>.Outer.Inner> visibility:private [final]
-          EXPRESSION_BODY
-            GET_VAR 'j12: <root>.J<T1 of <root>.Outer, T2 of <root>.Outer.Inner> declared in <root>.Outer.Inner.<init>' type=<root>.J<T1 of <root>.Outer, T2 of <root>.Outer.Inner> origin=INITIALIZE_PROPERTY_FROM_PARAMETER
-        FUN DEFAULT_PROPERTY_ACCESSOR name:<get-j12> visibility:public modality:FINAL <> ($this:<root>.Outer.Inner<T2 of <root>.Outer.Inner, T1 of <root>.Outer>) returnType:<root>.J<T1 of <root>.Outer, T2 of <root>.Outer.Inner>
-          correspondingProperty: PROPERTY name:j12 visibility:public modality:FINAL [val]
-          $this: VALUE_PARAMETER name:<this> type:<root>.Outer.Inner<T2 of <root>.Outer.Inner, T1 of <root>.Outer>
-          BLOCK_BODY
-            RETURN type=kotlin.Nothing from='public final fun <get-j12> (): <root>.J<T1 of <root>.Outer, T2 of <root>.Outer.Inner> declared in <root>.Outer.Inner'
-              GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:j12 type:<root>.J<T1 of <root>.Outer, T2 of <root>.Outer.Inner> visibility:private [final]' type=<root>.J<T1 of <root>.Outer, T2 of <root>.Outer.Inner> origin=null
-                receiver: GET_VAR '<this>: <root>.Outer.Inner<T2 of <root>.Outer.Inner, T1 of <root>.Outer> declared in <root>.Outer.Inner.<get-j12>' type=<root>.Outer.Inner<T2 of <root>.Outer.Inner, T1 of <root>.Outer> origin=null
-      FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
-        overridden:
-          public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
-        $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-        VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-      FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
-        overridden:
-          public open fun hashCode (): kotlin.Int declared in kotlin.Any
-        $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-      FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
-        overridden:
-          public open fun toString (): kotlin.String declared in kotlin.Any
-        $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
-      overridden:
-        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
-      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
-    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
-      overridden:
-        public open fun hashCode (): kotlin.Int declared in kotlin.Any
-      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
-      overridden:
-        public open fun toString (): kotlin.String declared in kotlin.Any
-      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
-  FUN name:test4 visibility:public modality:FINAL <> (f:kotlin.Function1<kotlin.String, kotlin.String>, g:kotlin.Function1<kotlin.Any, kotlin.String>) returnType:<root>.Outer.Inner<kotlin.Any?, kotlin.String?>
-    VALUE_PARAMETER name:f index:0 type:kotlin.Function1<kotlin.String, kotlin.String>
-    VALUE_PARAMETER name:g index:1 type:kotlin.Function1<kotlin.Any, kotlin.String>
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun test4 (f: kotlin.Function1<kotlin.String, kotlin.String>, g: kotlin.Function1<kotlin.Any, kotlin.String>): <root>.Outer.Inner<kotlin.Any?, kotlin.String?> declared in <root>'
-        CONSTRUCTOR_CALL 'public constructor <init> (j12: <root>.J<T1 of <root>.Outer, T2 of <root>.Outer.Inner>) [primary] declared in <root>.Outer.Inner' type=<root>.Outer.Inner<kotlin.Any?, kotlin.String?> origin=null
-          <class: T2>: kotlin.Any?
-          $outer: CONSTRUCTOR_CALL 'public constructor <init> (j11: <root>.J<T1 of <root>.Outer, T1 of <root>.Outer>) [primary] declared in <root>.Outer' type=<root>.Outer<kotlin.String?> origin=null
-            <class: T1>: kotlin.String?
-            j11: TYPE_OP type=<root>.J<kotlin.String?, kotlin.String?> origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?, kotlin.String?>
-              GET_VAR 'f: kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test4' type=kotlin.Function1<kotlin.String, kotlin.String> origin=null
-          j12: TYPE_OP type=<root>.J<kotlin.String?, kotlin.Any?> origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?, kotlin.Any?>
-            GET_VAR 'g: kotlin.Function1<kotlin.Any, kotlin.String> declared in <root>.test4' type=kotlin.Function1<kotlin.Any, kotlin.String> origin=null
-  FUN name:testGenericJavaCtor1 visibility:public modality:FINAL <> (f:kotlin.Function1<kotlin.String, kotlin.Int>) returnType:<root>.G<kotlin.String?>
-    VALUE_PARAMETER name:f index:0 type:kotlin.Function1<kotlin.String, kotlin.Int>
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun testGenericJavaCtor1 (f: kotlin.Function1<kotlin.String, kotlin.Int>): <root>.G<kotlin.String?> declared in <root>'
-        CONSTRUCTOR_CALL 'public constructor <init> <TCtor> (x: <root>.J<TCtor of <root>.G.<init>?, TClass of <root>.G?>?) declared in <root>.G' type=<root>.G<kotlin.String?> origin=null
-          <class: TClass>: kotlin.String?
-          <TCtor>: kotlin.Int?
-          x: TYPE_OP type=<root>.J<kotlin.Int?, kotlin.String?>? origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.Int?, kotlin.String?>?
-            GET_VAR 'f: kotlin.Function1<kotlin.String, kotlin.Int> declared in <root>.testGenericJavaCtor1' type=kotlin.Function1<kotlin.String, kotlin.Int> origin=null
-  FUN name:testGenericJavaCtor2 visibility:public modality:FINAL <> (x:kotlin.Any) returnType:kotlin.Unit
-    VALUE_PARAMETER name:x index:0 type:kotlin.Any
-    BLOCK_BODY
-      TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        TYPE_OP type=kotlin.Function1<kotlin.String, kotlin.Int> origin=CAST typeOperand=kotlin.Function1<kotlin.String, kotlin.Int>
-          GET_VAR 'x: kotlin.Any declared in <root>.testGenericJavaCtor2' type=kotlin.Any origin=null
-      TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
-        CONSTRUCTOR_CALL 'public constructor <init> <TCtor> (x: <root>.J<TCtor of <root>.G.<init>?, TClass of <root>.G?>?) declared in <root>.G' type=<root>.G<kotlin.String?> origin=null
-          <class: TClass>: kotlin.String?
-          <TCtor>: kotlin.Int?
-          x: TYPE_OP type=<root>.J<kotlin.Int?, kotlin.String?>? origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.Int?, kotlin.String?>?
-            TYPE_OP type=kotlin.Function1<kotlin.String, kotlin.Int> origin=IMPLICIT_CAST typeOperand=kotlin.Function1<kotlin.String, kotlin.Int>
-              GET_VAR 'x: kotlin.Any declared in <root>.testGenericJavaCtor2' type=kotlin.Any origin=null

compiler/testData/ir/irText/expressions/sam/samConversionInGenericConstructorCall_NI.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // !LANGUAGE: +NewInference +SamConversionPerArgument +SamConversionForKotlinFunctions +ProhibitVarargAsArrayAfterSamArgument
 // FILE: samConversionInGenericConstructorCall_NI.kt
 fun test3(

compiler/testData/ir/irText/expressions/sam/samConversionToGeneric.fir.kt.txt

@@ -1,51 +1,52 @@
-fun test1(): J<String?> {
-  return local fun <anonymous>(x: String?): String? {
+fun test1(): J<@FlexibleNullability String?> {
+  return local fun <anonymous>(x: @FlexibleNullability String?): @FlexibleNullability String? {
     return x
   }
- /*-> J<String?> */
+ /*-> J<@FlexibleNullability String?> */
 }
 
-fun test2(): J<String?> {
-  return local fun <anonymous>(x: String): String? {
+fun test2(): J<@FlexibleNullability String?> {
+  return local fun <anonymous>(x: String): @FlexibleNullability String? {
     return x
   }
- /*-> J<String?> */
+ /*-> J<@FlexibleNullability String?> */
 }
 
 fun test3() {
-  return bar<String?>(j = local fun <anonymous>(x: String): String? {
+  return bar<@FlexibleNullability String?>(j = local fun <anonymous>(x: String): @FlexibleNullability String? {
     return x
   }
- /*-> J<String?>? */)
+ /*-> @FlexibleNullability J<@FlexibleNullability String?>? */)
 }
 
 fun test4(a: Any) {
   a as J<String> /*~> Unit */
-  bar<String?>(j = a /*as J<String> */)
+  bar<@FlexibleNullability String?>(j = a /*as J<String> */)
 }
 
 fun test5(a: Any) {
   a as Function1<String, String> /*~> Unit */
-  bar<String?>(j = a /*as Function1<String, String> */ /*-> J<String?>? */)
+  bar<@FlexibleNullability String?>(j = a /*as Function1<String, String> */ /*-> @FlexibleNullability J<@FlexibleNullability String?>? */)
 }
 
 fun <T : Any?> test6(a: Function1<T, T>) {
-  bar<T?>(j = a /*-> J<T?>? */)
+  bar<@FlexibleNullability T?>(j = a /*-> @FlexibleNullability J<@FlexibleNullability T?>? */)
 }
 
 fun <T : Any?> test7(a: Any) {
   a as Function1<T, T> /*~> Unit */
-  bar<T?>(j = a /*as Function1<T, T> */ /*-> J<T?>? */)
+  bar<@FlexibleNullability T?>(j = a /*as Function1<T, T> */ /*-> @FlexibleNullability J<@FlexibleNullability T?>? */)
 }
 
-fun test8(efn: @ExtensionFunctionType Function1<String, String>): J<String?> {
-  return efn /*-> J<String?> */
+fun test8(efn: @ExtensionFunctionType Function1<String, String>): J<@FlexibleNullability String?> {
+  return efn /*-> J<@FlexibleNullability String?> */
 }
 
 fun test9(efn: @ExtensionFunctionType Function1<String, String>) {
-  bar<String?>(j = efn /*-> J<String?>? */)
+  bar<@FlexibleNullability String?>(j = efn /*-> @FlexibleNullability J<@FlexibleNullability String?>? */)
 }
 
 fun test10(fn: Function1<Int, String>) {
-  bar2x<Int?>(j2x = fn /*-> J2X<Int?>? */)
+  bar2x<@FlexibleNullability Int?>(j2x = fn /*-> @FlexibleNullability J2X<@FlexibleNullability Int?>? */)
 }
+

compiler/testData/ir/irText/expressions/sam/samConversionToGeneric.fir.txt

@@ -1,35 +1,35 @@
 FILE fqName:<root> fileName:/samConversionToGeneric.kt
-  FUN name:test1 visibility:public modality:FINAL <> () returnType:<root>.J<kotlin.String?>
+  FUN name:test1 visibility:public modality:FINAL <> () returnType:<root>.J<@[FlexibleNullability] kotlin.String?>
     BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun test1 (): <root>.J<kotlin.String?> declared in <root>'
-        TYPE_OP type=<root>.J<kotlin.String?> origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?>
-          FUN_EXPR type=kotlin.Function1<kotlin.String?, kotlin.String?> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (x:kotlin.String?) returnType:kotlin.String?
-              VALUE_PARAMETER name:x index:0 type:kotlin.String?
+      RETURN type=kotlin.Nothing from='public final fun test1 (): <root>.J<@[FlexibleNullability] kotlin.String?> declared in <root>'
+        TYPE_OP type=<root>.J<@[FlexibleNullability] kotlin.String?> origin=SAM_CONVERSION typeOperand=<root>.J<@[FlexibleNullability] kotlin.String?>
+          FUN_EXPR type=kotlin.Function1<@[FlexibleNullability] kotlin.String?, @[FlexibleNullability] kotlin.String?> origin=LAMBDA
+            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (x:@[FlexibleNullability] kotlin.String?) returnType:@[FlexibleNullability] kotlin.String?
+              VALUE_PARAMETER name:x index:0 type:@[FlexibleNullability] kotlin.String?
               BLOCK_BODY
-                RETURN type=kotlin.Nothing from='local final fun <anonymous> (x: kotlin.String?): kotlin.String? declared in <root>.test1'
-                  GET_VAR 'x: kotlin.String? declared in <root>.test1.<anonymous>' type=kotlin.String? origin=null
-  FUN name:test2 visibility:public modality:FINAL <> () returnType:<root>.J<kotlin.String?>
+                RETURN type=kotlin.Nothing from='local final fun <anonymous> (x: @[FlexibleNullability] kotlin.String?): @[FlexibleNullability] kotlin.String? declared in <root>.test1'
+                  GET_VAR 'x: @[FlexibleNullability] kotlin.String? declared in <root>.test1.<anonymous>' type=@[FlexibleNullability] kotlin.String? origin=null
+  FUN name:test2 visibility:public modality:FINAL <> () returnType:<root>.J<@[FlexibleNullability] kotlin.String?>
     BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun test2 (): <root>.J<kotlin.String?> declared in <root>'
-        TYPE_OP type=<root>.J<kotlin.String?> origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?>
-          FUN_EXPR type=kotlin.Function1<kotlin.String, kotlin.String?> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (x:kotlin.String) returnType:kotlin.String?
+      RETURN type=kotlin.Nothing from='public final fun test2 (): <root>.J<@[FlexibleNullability] kotlin.String?> declared in <root>'
+        TYPE_OP type=<root>.J<@[FlexibleNullability] kotlin.String?> origin=SAM_CONVERSION typeOperand=<root>.J<@[FlexibleNullability] kotlin.String?>
+          FUN_EXPR type=kotlin.Function1<kotlin.String, @[FlexibleNullability] kotlin.String?> origin=LAMBDA
+            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (x:kotlin.String) returnType:@[FlexibleNullability] kotlin.String?
               VALUE_PARAMETER name:x index:0 type:kotlin.String
               BLOCK_BODY
-                RETURN type=kotlin.Nothing from='local final fun <anonymous> (x: kotlin.String): kotlin.String? declared in <root>.test2'
+                RETURN type=kotlin.Nothing from='local final fun <anonymous> (x: kotlin.String): @[FlexibleNullability] kotlin.String? declared in <root>.test2'
                   GET_VAR 'x: kotlin.String declared in <root>.test2.<anonymous>' type=kotlin.String origin=null
   FUN name:test3 visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test3 (): kotlin.Unit declared in <root>'
-        CALL 'public open fun bar <X> (j: <root>.J<X of <root>.H.bar?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
-          <X>: kotlin.String?
-          j: TYPE_OP type=<root>.J<kotlin.String?>? origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?>?
-            FUN_EXPR type=kotlin.Function1<kotlin.String, kotlin.String?> origin=LAMBDA
-              FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (x:kotlin.String) returnType:kotlin.String?
+        CALL 'public open fun bar <X> (j: @[FlexibleNullability] <root>.J<@[FlexibleNullability] X of <root>.H.bar?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
+          <X>: @[FlexibleNullability] kotlin.String?
+          j: TYPE_OP type=@[FlexibleNullability] <root>.J<@[FlexibleNullability] kotlin.String?>? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] <root>.J<@[FlexibleNullability] kotlin.String?>?
+            FUN_EXPR type=kotlin.Function1<kotlin.String, @[FlexibleNullability] kotlin.String?> origin=LAMBDA
+              FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> (x:kotlin.String) returnType:@[FlexibleNullability] kotlin.String?
                 VALUE_PARAMETER name:x index:0 type:kotlin.String
                 BLOCK_BODY
-                  RETURN type=kotlin.Nothing from='local final fun <anonymous> (x: kotlin.String): kotlin.String? declared in <root>.test3'
+                  RETURN type=kotlin.Nothing from='local final fun <anonymous> (x: kotlin.String): @[FlexibleNullability] kotlin.String? declared in <root>.test3'
                     GET_VAR 'x: kotlin.String declared in <root>.test3.<anonymous>' type=kotlin.String origin=null
   FUN name:test4 visibility:public modality:FINAL <> (a:kotlin.Any) returnType:kotlin.Unit
     VALUE_PARAMETER name:a index:0 type:kotlin.Any
@@ -37,8 +37,8 @@ FILE fqName:<root> fileName:/samConversionToGeneric.kt
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
         TYPE_OP type=<root>.J<kotlin.String> origin=CAST typeOperand=<root>.J<kotlin.String>
           GET_VAR 'a: kotlin.Any declared in <root>.test4' type=kotlin.Any origin=null
-      CALL 'public open fun bar <X> (j: <root>.J<X of <root>.H.bar?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
-        <X>: kotlin.String?
+      CALL 'public open fun bar <X> (j: @[FlexibleNullability] <root>.J<@[FlexibleNullability] X of <root>.H.bar?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
+        <X>: @[FlexibleNullability] kotlin.String?
         j: TYPE_OP type=<root>.J<kotlin.String> origin=IMPLICIT_CAST typeOperand=<root>.J<kotlin.String>
           GET_VAR 'a: kotlin.Any declared in <root>.test4' type=kotlin.Any origin=null
   FUN name:test5 visibility:public modality:FINAL <> (a:kotlin.Any) returnType:kotlin.Unit
@@ -47,18 +47,18 @@ FILE fqName:<root> fileName:/samConversionToGeneric.kt
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
         TYPE_OP type=kotlin.Function1<kotlin.String, kotlin.String> origin=CAST typeOperand=kotlin.Function1<kotlin.String, kotlin.String>
           GET_VAR 'a: kotlin.Any declared in <root>.test5' type=kotlin.Any origin=null
-      CALL 'public open fun bar <X> (j: <root>.J<X of <root>.H.bar?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
-        <X>: kotlin.String?
-        j: TYPE_OP type=<root>.J<kotlin.String?>? origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?>?
+      CALL 'public open fun bar <X> (j: @[FlexibleNullability] <root>.J<@[FlexibleNullability] X of <root>.H.bar?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
+        <X>: @[FlexibleNullability] kotlin.String?
+        j: TYPE_OP type=@[FlexibleNullability] <root>.J<@[FlexibleNullability] kotlin.String?>? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] <root>.J<@[FlexibleNullability] kotlin.String?>?
           TYPE_OP type=kotlin.Function1<kotlin.String, kotlin.String> origin=IMPLICIT_CAST typeOperand=kotlin.Function1<kotlin.String, kotlin.String>
             GET_VAR 'a: kotlin.Any declared in <root>.test5' type=kotlin.Any origin=null
   FUN name:test6 visibility:public modality:FINAL <T> (a:kotlin.Function1<T of <root>.test6, T of <root>.test6>) returnType:kotlin.Unit
     TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?]
     VALUE_PARAMETER name:a index:0 type:kotlin.Function1<T of <root>.test6, T of <root>.test6>
     BLOCK_BODY
-      CALL 'public open fun bar <X> (j: <root>.J<X of <root>.H.bar?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
-        <X>: T of <root>.test6?
-        j: TYPE_OP type=<root>.J<T of <root>.test6?>? origin=SAM_CONVERSION typeOperand=<root>.J<T of <root>.test6?>?
+      CALL 'public open fun bar <X> (j: @[FlexibleNullability] <root>.J<@[FlexibleNullability] X of <root>.H.bar?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
+        <X>: @[FlexibleNullability] T of <root>.test6?
+        j: TYPE_OP type=@[FlexibleNullability] <root>.J<@[FlexibleNullability] T of <root>.test6?>? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] <root>.J<@[FlexibleNullability] T of <root>.test6?>?
           GET_VAR 'a: kotlin.Function1<T of <root>.test6, T of <root>.test6> declared in <root>.test6' type=kotlin.Function1<T of <root>.test6, T of <root>.test6> origin=null
   FUN name:test7 visibility:public modality:FINAL <T> (a:kotlin.Any) returnType:kotlin.Unit
     TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?]
@@ -67,28 +67,28 @@ FILE fqName:<root> fileName:/samConversionToGeneric.kt
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
         TYPE_OP type=kotlin.Function1<T of <root>.test7, T of <root>.test7> origin=CAST typeOperand=kotlin.Function1<T of <root>.test7, T of <root>.test7>
           GET_VAR 'a: kotlin.Any declared in <root>.test7' type=kotlin.Any origin=null
-      CALL 'public open fun bar <X> (j: <root>.J<X of <root>.H.bar?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
-        <X>: T of <root>.test7?
-        j: TYPE_OP type=<root>.J<T of <root>.test7?>? origin=SAM_CONVERSION typeOperand=<root>.J<T of <root>.test7?>?
+      CALL 'public open fun bar <X> (j: @[FlexibleNullability] <root>.J<@[FlexibleNullability] X of <root>.H.bar?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
+        <X>: @[FlexibleNullability] T of <root>.test7?
+        j: TYPE_OP type=@[FlexibleNullability] <root>.J<@[FlexibleNullability] T of <root>.test7?>? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] <root>.J<@[FlexibleNullability] T of <root>.test7?>?
           TYPE_OP type=kotlin.Function1<T of <root>.test7, T of <root>.test7> origin=IMPLICIT_CAST typeOperand=kotlin.Function1<T of <root>.test7, T of <root>.test7>
             GET_VAR 'a: kotlin.Any declared in <root>.test7' type=kotlin.Any origin=null
-  FUN name:test8 visibility:public modality:FINAL <> (efn:@[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String>) returnType:<root>.J<kotlin.String?>
+  FUN name:test8 visibility:public modality:FINAL <> (efn:@[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String>) returnType:<root>.J<@[FlexibleNullability] kotlin.String?>
     VALUE_PARAMETER name:efn index:0 type:@[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String>
     BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun test8 (efn: @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String>): <root>.J<kotlin.String?> declared in <root>'
-        TYPE_OP type=<root>.J<kotlin.String?> origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?>
+      RETURN type=kotlin.Nothing from='public final fun test8 (efn: @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String>): <root>.J<@[FlexibleNullability] kotlin.String?> declared in <root>'
+        TYPE_OP type=<root>.J<@[FlexibleNullability] kotlin.String?> origin=SAM_CONVERSION typeOperand=<root>.J<@[FlexibleNullability] kotlin.String?>
           GET_VAR 'efn: @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test8' type=@[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String> origin=null
   FUN name:test9 visibility:public modality:FINAL <> (efn:@[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String>) returnType:kotlin.Unit
     VALUE_PARAMETER name:efn index:0 type:@[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String>
     BLOCK_BODY
-      CALL 'public open fun bar <X> (j: <root>.J<X of <root>.H.bar?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
-        <X>: kotlin.String?
-        j: TYPE_OP type=<root>.J<kotlin.String?>? origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?>?
+      CALL 'public open fun bar <X> (j: @[FlexibleNullability] <root>.J<@[FlexibleNullability] X of <root>.H.bar?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
+        <X>: @[FlexibleNullability] kotlin.String?
+        j: TYPE_OP type=@[FlexibleNullability] <root>.J<@[FlexibleNullability] kotlin.String?>? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] <root>.J<@[FlexibleNullability] kotlin.String?>?
           GET_VAR 'efn: @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test9' type=@[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String> origin=null
   FUN name:test10 visibility:public modality:FINAL <> (fn:kotlin.Function1<kotlin.Int, kotlin.String>) returnType:kotlin.Unit
     VALUE_PARAMETER name:fn index:0 type:kotlin.Function1<kotlin.Int, kotlin.String>
     BLOCK_BODY
-      CALL 'public open fun bar2x <Y> (j2x: <root>.J2X<Y of <root>.H.bar2x?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
-        <Y>: kotlin.Int?
-        j2x: TYPE_OP type=<root>.J2X<kotlin.Int?>? origin=SAM_CONVERSION typeOperand=<root>.J2X<kotlin.Int?>?
+      CALL 'public open fun bar2x <Y> (j2x: @[FlexibleNullability] <root>.J2X<@[FlexibleNullability] Y of <root>.H.bar2x?>?): kotlin.Unit declared in <root>.H' type=kotlin.Unit origin=null
+        <Y>: @[FlexibleNullability] kotlin.Int?
+        j2x: TYPE_OP type=@[FlexibleNullability] <root>.J2X<@[FlexibleNullability] kotlin.Int?>? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] <root>.J2X<@[FlexibleNullability] kotlin.Int?>?
           GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.String> declared in <root>.test10' type=kotlin.Function1<kotlin.Int, kotlin.String> origin=null

compiler/testData/ir/irText/expressions/sam/samConversions.fir.kt.txt

@@ -1,29 +0,0 @@
-fun J.test0(a: Runnable) {
-  runStatic(r = a)
-  <this>.runIt(r = a)
-}
-
-fun test1() {
-  runStatic(r = local fun <anonymous>() {
-    test1()
-  }
- /*-> Runnable? */)
-}
-
-fun J.test2() {
-  <this>.runIt(r = local fun <anonymous>() {
-    test1()
-  }
- /*-> Runnable? */)
-}
-
-fun J.test3(a: Function0<Unit>) {
-  <this>.run2(r1 = a /*-> Runnable? */, r2 = a /*-> Runnable? */)
-}
-
-fun J.test4(a: Function0<Unit>, b: Function0<Unit>, flag: Boolean) {
-  <this>.runIt(r = when {
-    flag -> a
-    else -> b
-  } /*-> Runnable? */)
-}

compiler/testData/ir/irText/expressions/sam/samConversions.fir.txt

@@ -1,54 +0,0 @@
-FILE fqName:<root> fileName:/samConversions.kt
-  FUN name:test0 visibility:public modality:FINAL <> ($receiver:<root>.J, a:java.lang.Runnable) returnType:kotlin.Unit
-    $receiver: VALUE_PARAMETER name:<this> type:<root>.J
-    VALUE_PARAMETER name:a index:0 type:java.lang.Runnable
-    BLOCK_BODY
-      CALL 'public open fun runStatic (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
-        r: GET_VAR 'a: java.lang.Runnable declared in <root>.test0' type=java.lang.Runnable origin=null
-      CALL 'public open fun runIt (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
-        $this: GET_VAR '<this>: <root>.J declared in <root>.test0' type=<root>.J origin=null
-        r: GET_VAR 'a: java.lang.Runnable declared in <root>.test0' type=java.lang.Runnable origin=null
-  FUN name:test1 visibility:public modality:FINAL <> () returnType:kotlin.Unit
-    BLOCK_BODY
-      CALL 'public open fun runStatic (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
-        r: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
-              BLOCK_BODY
-                CALL 'public final fun test1 (): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
-  FUN name:test2 visibility:public modality:FINAL <> ($receiver:<root>.J) returnType:kotlin.Unit
-    $receiver: VALUE_PARAMETER name:<this> type:<root>.J
-    BLOCK_BODY
-      CALL 'public open fun runIt (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
-        $this: GET_VAR '<this>: <root>.J declared in <root>.test2' type=<root>.J origin=null
-        r: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
-            FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
-              BLOCK_BODY
-                CALL 'public final fun test1 (): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
-  FUN name:test3 visibility:public modality:FINAL <> ($receiver:<root>.J, a:kotlin.Function0<kotlin.Unit>) returnType:kotlin.Unit
-    $receiver: VALUE_PARAMETER name:<this> type:<root>.J
-    VALUE_PARAMETER name:a index:0 type:kotlin.Function0<kotlin.Unit>
-    BLOCK_BODY
-      CALL 'public open fun run2 (r1: java.lang.Runnable?, r2: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
-        $this: GET_VAR '<this>: <root>.J declared in <root>.test3' type=<root>.J origin=null
-        r1: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=null
-        r2: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=null
-  FUN name:test4 visibility:public modality:FINAL <> ($receiver:<root>.J, a:kotlin.Function0<kotlin.Unit>, b:kotlin.Function0<kotlin.Unit>, flag:kotlin.Boolean) returnType:kotlin.Unit
-    $receiver: VALUE_PARAMETER name:<this> type:<root>.J
-    VALUE_PARAMETER name:a index:0 type:kotlin.Function0<kotlin.Unit>
-    VALUE_PARAMETER name:b index:1 type:kotlin.Function0<kotlin.Unit>
-    VALUE_PARAMETER name:flag index:2 type:kotlin.Boolean
-    BLOCK_BODY
-      CALL 'public open fun runIt (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
-        $this: GET_VAR '<this>: <root>.J declared in <root>.test4' type=<root>.J origin=null
-        r: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          WHEN type=kotlin.Function0<kotlin.Unit> origin=IF
-            BRANCH
-              if: GET_VAR 'flag: kotlin.Boolean declared in <root>.test4' type=kotlin.Boolean origin=null
-              then: GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=null
-            BRANCH
-              if: CONST Boolean type=kotlin.Boolean value=true
-              then: GET_VAR 'b: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=null

compiler/testData/ir/irText/expressions/sam/samConversions.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // WITH_JDK
 // FILE: samConversions.kt
 fun J.test0(a: Runnable) {

compiler/testData/ir/irText/expressions/sam/samConversionsWithSmartCasts.fir.kt.txt

@@ -18,7 +18,7 @@ fun test3(a: Function0<Unit>) {
 
 fun test4(a: Function0<Unit>, b: Function0<Unit>) {
   when {
-    a is Runnable -> J().run2(r1 = a /*as Runnable */, r2 = b /*-> Runnable? */)
+    a is Runnable -> J().run2(r1 = a /*as Runnable */, r2 = b /*-> @FlexibleNullability Runnable? */)
   }
 }
 
@@ -39,19 +39,19 @@ fun test5x(a: Any) {
 
 fun test6(a: Any) {
   a as Function0<Unit> /*~> Unit */
-  J().run1(r = a /*as Function0<Unit> */ /*-> Runnable? */)
+  J().run1(r = a /*as Function0<Unit> */ /*-> @FlexibleNullability Runnable? */)
 }
 
 fun test7(a: Function1<Int, Int>) {
   a as Function0<Unit> /*~> Unit */
-  J().run1(r = a /*as Function0<Unit> */ /*-> Runnable? */)
+  J().run1(r = a /*as Function0<Unit> */ /*-> @FlexibleNullability Runnable? */)
 }
 
 fun test8(a: Function0<Unit>) {
-  J().run1(r = id<Function0<Unit>?>(x = a /*-> Function0<Unit>? */) /*-> Runnable? */)
+  J().run1(r = id<@FlexibleNullability Function0<Unit>?>(x = a /*-> @FlexibleNullability Function0<Unit>? */) /*-> @FlexibleNullability Runnable? */)
 }
 
 fun test9() {
-  J().run1(r = ::test9 /*-> Runnable? */)
+  J().run1(r = ::test9 /*-> @FlexibleNullability Runnable? */)
 }
 

compiler/testData/ir/irText/expressions/sam/samConversionsWithSmartCasts.fir.txt

@@ -6,7 +6,7 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
         BRANCH
           if: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=java.lang.Runnable
             GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test1' type=kotlin.Function0<kotlin.Unit> origin=null
-          then: CALL 'public open fun runStatic (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
+          then: CALL 'public open fun runStatic (r: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
             r: TYPE_OP type=java.lang.Runnable origin=IMPLICIT_CAST typeOperand=java.lang.Runnable
               GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test1' type=kotlin.Function0<kotlin.Unit> origin=null
   FUN name:test2 visibility:public modality:FINAL <> (a:kotlin.Function0<kotlin.Unit>) returnType:kotlin.Unit
@@ -16,7 +16,7 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
         BRANCH
           if: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=java.lang.Runnable
             GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test2' type=kotlin.Function0<kotlin.Unit> origin=null
-          then: CALL 'public open fun run1 (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
+          then: CALL 'public open fun run1 (r: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
             $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.J' type=<root>.J origin=null
             r: TYPE_OP type=java.lang.Runnable origin=IMPLICIT_CAST typeOperand=java.lang.Runnable
               GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test2' type=kotlin.Function0<kotlin.Unit> origin=null
@@ -27,7 +27,7 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
         BRANCH
           if: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=java.lang.Runnable
             GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=null
-          then: CALL 'public open fun run2 (r1: java.lang.Runnable?, r2: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
+          then: CALL 'public open fun run2 (r1: @[FlexibleNullability] java.lang.Runnable?, r2: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
             $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.J' type=<root>.J origin=null
             r1: TYPE_OP type=java.lang.Runnable origin=IMPLICIT_CAST typeOperand=java.lang.Runnable
               GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=null
@@ -41,11 +41,11 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
         BRANCH
           if: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=java.lang.Runnable
             GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=null
-          then: CALL 'public open fun run2 (r1: java.lang.Runnable?, r2: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
+          then: CALL 'public open fun run2 (r1: @[FlexibleNullability] java.lang.Runnable?, r2: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
             $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.J' type=<root>.J origin=null
             r1: TYPE_OP type=java.lang.Runnable origin=IMPLICIT_CAST typeOperand=java.lang.Runnable
               GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=null
-            r2: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+            r2: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
               GET_VAR 'b: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=null
   FUN name:test5 visibility:public modality:FINAL <> (a:kotlin.Any) returnType:kotlin.Unit
     VALUE_PARAMETER name:a index:0 type:kotlin.Any
@@ -54,7 +54,7 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
         BRANCH
           if: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=java.lang.Runnable
             GET_VAR 'a: kotlin.Any declared in <root>.test5' type=kotlin.Any origin=null
-          then: CALL 'public open fun run1 (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
+          then: CALL 'public open fun run1 (r: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
             $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.J' type=<root>.J origin=null
             r: TYPE_OP type=java.lang.Runnable origin=IMPLICIT_CAST typeOperand=java.lang.Runnable
               GET_VAR 'a: kotlin.Any declared in <root>.test5' type=kotlin.Any origin=null
@@ -70,7 +70,7 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
               TYPE_OP type=kotlin.Function0<kotlin.Unit> origin=CAST typeOperand=kotlin.Function0<kotlin.Unit>
                 TYPE_OP type=java.lang.Runnable origin=IMPLICIT_CAST typeOperand=java.lang.Runnable
                   GET_VAR 'a: kotlin.Any declared in <root>.test5x' type=kotlin.Any origin=null
-            CALL 'public open fun run1 (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
+            CALL 'public open fun run1 (r: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
               $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.J' type=<root>.J origin=null
               r: TYPE_OP type=java.lang.Runnable origin=IMPLICIT_CAST typeOperand=java.lang.Runnable
                 GET_VAR 'a: kotlin.Any declared in <root>.test5x' type=kotlin.Any origin=null
@@ -80,9 +80,9 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
         TYPE_OP type=kotlin.Function0<kotlin.Unit> origin=CAST typeOperand=kotlin.Function0<kotlin.Unit>
           GET_VAR 'a: kotlin.Any declared in <root>.test6' type=kotlin.Any origin=null
-      CALL 'public open fun run1 (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
+      CALL 'public open fun run1 (r: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
         $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.J' type=<root>.J origin=null
-        r: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        r: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           TYPE_OP type=kotlin.Function0<kotlin.Unit> origin=IMPLICIT_CAST typeOperand=kotlin.Function0<kotlin.Unit>
             GET_VAR 'a: kotlin.Any declared in <root>.test6' type=kotlin.Any origin=null
   FUN name:test7 visibility:public modality:FINAL <> (a:kotlin.Function1<kotlin.Int, kotlin.Int>) returnType:kotlin.Unit
@@ -91,24 +91,24 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
         TYPE_OP type=kotlin.Function0<kotlin.Unit> origin=CAST typeOperand=kotlin.Function0<kotlin.Unit>
           GET_VAR 'a: kotlin.Function1<kotlin.Int, kotlin.Int> declared in <root>.test7' type=kotlin.Function1<kotlin.Int, kotlin.Int> origin=null
-      CALL 'public open fun run1 (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
+      CALL 'public open fun run1 (r: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
         $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.J' type=<root>.J origin=null
-        r: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        r: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           TYPE_OP type=kotlin.Function0<kotlin.Unit> origin=IMPLICIT_CAST typeOperand=kotlin.Function0<kotlin.Unit>
             GET_VAR 'a: kotlin.Function1<kotlin.Int, kotlin.Int> declared in <root>.test7' type=kotlin.Function1<kotlin.Int, kotlin.Int> origin=null
   FUN name:test8 visibility:public modality:FINAL <> (a:kotlin.Function0<kotlin.Unit>) returnType:kotlin.Unit
     VALUE_PARAMETER name:a index:0 type:kotlin.Function0<kotlin.Unit>
     BLOCK_BODY
-      CALL 'public open fun run1 (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
+      CALL 'public open fun run1 (r: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
         $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.J' type=<root>.J origin=null
-        r: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          CALL 'public open fun id <T> (x: T of <root>.J.id?): T of <root>.J.id? declared in <root>.J' type=kotlin.Function0<kotlin.Unit>? origin=null
-            <T>: kotlin.Function0<kotlin.Unit>?
-            x: TYPE_OP type=kotlin.Function0<kotlin.Unit>? origin=SAM_CONVERSION typeOperand=kotlin.Function0<kotlin.Unit>?
+        r: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
+          CALL 'public open fun id <T> (x: @[FlexibleNullability] T of <root>.J.id?): @[FlexibleNullability] T of <root>.J.id? declared in <root>.J' type=@[FlexibleNullability] kotlin.Function0<kotlin.Unit>? origin=null
+            <T>: @[FlexibleNullability] kotlin.Function0<kotlin.Unit>?
+            x: TYPE_OP type=@[FlexibleNullability] kotlin.Function0<kotlin.Unit>? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] kotlin.Function0<kotlin.Unit>?
               GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test8' type=kotlin.Function0<kotlin.Unit> origin=null
   FUN name:test9 visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
-      CALL 'public open fun run1 (r: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
+      CALL 'public open fun run1 (r: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
         $this: CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.J' type=<root>.J origin=null
-        r: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        r: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           FUNCTION_REFERENCE 'public final fun test9 (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/sam/samOperators.fir.kt.txt

@@ -2,16 +2,17 @@ fun f() {
 }
 
 fun J.test1() {
-  <this>.get(k = ::f /*-> Runnable? */)
-  <this>.get(k = ::f /*-> Runnable? */, m = ::f /*-> Runnable? */)
+  <this>.get(k = ::f /*-> @FlexibleNullability Runnable? */)
+  <this>.get(k = ::f /*-> @FlexibleNullability Runnable? */, m = ::f /*-> @FlexibleNullability Runnable? */)
 }
 
 fun J.test2() {
-  <this>.set(k = ::f /*-> Runnable? */, v = ::f /*-> Runnable? */)
-  <this>.set(k = ::f /*-> Runnable? */, m = ::f /*-> Runnable? */, v = ::f /*-> Runnable? */)
+  <this>.set(k = ::f /*-> @FlexibleNullability Runnable? */, v = ::f /*-> @FlexibleNullability Runnable? */)
+  <this>.set(k = ::f /*-> @FlexibleNullability Runnable? */, m = ::f /*-> @FlexibleNullability Runnable? */, v = ::f /*-> @FlexibleNullability Runnable? */)
 }
 
 fun J.test3() {
-  <this>.plusAssign(i = ::f /*-> Runnable? */)
-  <this>.minusAssign(i = ::f /*-> Runnable? */)
+  <this>.plusAssign(i = ::f /*-> @FlexibleNullability Runnable? */)
+  <this>.minusAssign(i = ::f /*-> @FlexibleNullability Runnable? */)
 }
+

compiler/testData/ir/irText/expressions/sam/samOperators.fir.txt

@@ -4,41 +4,41 @@ FILE fqName:<root> fileName:/samOperators.kt
   FUN name:test1 visibility:public modality:FINAL <> ($receiver:<root>.J) returnType:kotlin.Unit
     $receiver: VALUE_PARAMETER name:<this> type:<root>.J
     BLOCK_BODY
-      CALL 'public open fun get (k: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
+      CALL 'public open fun get (k: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test1' type=<root>.J origin=null
-        k: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        k: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
-      CALL 'public open fun get (k: java.lang.Runnable?, m: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
+      CALL 'public open fun get (k: @[FlexibleNullability] java.lang.Runnable?, m: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test1' type=<root>.J origin=null
-        k: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        k: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
-        m: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        m: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
   FUN name:test2 visibility:public modality:FINAL <> ($receiver:<root>.J) returnType:kotlin.Unit
     $receiver: VALUE_PARAMETER name:<this> type:<root>.J
     BLOCK_BODY
-      CALL 'public open fun set (k: java.lang.Runnable?, v: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
+      CALL 'public open fun set (k: @[FlexibleNullability] java.lang.Runnable?, v: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test2' type=<root>.J origin=null
-        k: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        k: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
-        v: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        v: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
-      CALL 'public open fun set (k: java.lang.Runnable?, m: java.lang.Runnable?, v: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
+      CALL 'public open fun set (k: @[FlexibleNullability] java.lang.Runnable?, m: @[FlexibleNullability] java.lang.Runnable?, v: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test2' type=<root>.J origin=null
-        k: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        k: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
-        m: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        m: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
-        v: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        v: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
   FUN name:test3 visibility:public modality:FINAL <> ($receiver:<root>.J) returnType:kotlin.Unit
     $receiver: VALUE_PARAMETER name:<this> type:<root>.J
     BLOCK_BODY
-      CALL 'public open fun plusAssign (i: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
+      CALL 'public open fun plusAssign (i: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test3' type=<root>.J origin=null
-        i: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        i: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>
-      CALL 'public open fun minusAssign (i: java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
+      CALL 'public open fun minusAssign (i: @[FlexibleNullability] java.lang.Runnable?): kotlin.Unit [operator] declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test3' type=<root>.J origin=null
-        i: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
+        i: TYPE_OP type=@[FlexibleNullability] java.lang.Runnable? origin=SAM_CONVERSION typeOperand=@[FlexibleNullability] java.lang.Runnable?
           FUNCTION_REFERENCE 'public final fun f (): kotlin.Unit declared in <root>' type=kotlin.reflect.KFunction0<kotlin.Unit> origin=null reflectionTarget=<same>

compiler/testData/ir/irText/expressions/setFieldWithImplicitCast.fir.txt

@@ -14,7 +14,7 @@ FILE fqName:<root> fileName:/Derived.kt
             if: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=kotlin.String
               GET_VAR 'v: kotlin.Any declared in <root>.Derived.setValue' type=kotlin.Any origin=null
             then: BLOCK type=kotlin.Unit origin=null
-              SET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:value type:kotlin.String? visibility:public' type=kotlin.Unit origin=EQ
+              SET_FIELD 'FIELD IR_EXTERNAL_JAVA_DECLARATION_STUB name:value type:@[FlexibleNullability] kotlin.String? visibility:public' type=kotlin.Unit origin=EQ
                 receiver: GET_VAR '<this>: <root>.Derived declared in <root>.Derived.setValue' type=<root>.Derived origin=null
                 value: TYPE_OP type=kotlin.String origin=IMPLICIT_CAST typeOperand=kotlin.String
                   GET_VAR 'v: kotlin.Any declared in <root>.Derived.setValue' type=kotlin.Any origin=null