FIR2IR: set proper IR origin for variable as function

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/ConversionUtils.kt

@@ -21,6 +21,7 @@ import org.jetbrains.kotlin.fir.references.FirThisReference
 import org.jetbrains.kotlin.fir.references.impl.FirPropertyFromParameterResolvedNamedReference
 import org.jetbrains.kotlin.fir.resolve.*
 import org.jetbrains.kotlin.fir.resolve.calls.SyntheticPropertySymbol
+import org.jetbrains.kotlin.fir.resolve.inference.isBuiltinFunctionalType
 import org.jetbrains.kotlin.fir.resolve.providers.FirProvider
 import org.jetbrains.kotlin.fir.resolve.toSymbol
 import org.jetbrains.kotlin.fir.scopes.ProcessorAction
@@ -382,7 +383,7 @@ private val nameToOperationConventionOrigin = mutableMapOf(
     OperatorNameConventions.RANGE_TO to IrStatementOrigin.RANGE
 )
 
-internal fun FirReference.statementOrigin(): IrStatementOrigin? {
+internal fun FirReference.statementOrigin(session: FirSession): IrStatementOrigin? {
     return when (this) {
         is FirPropertyFromParameterResolvedNamedReference -> IrStatementOrigin.INITIALIZE_PROPERTY_FROM_PARAMETER
         is FirResolvedNamedReference -> when (val symbol = resolvedSymbol) {
@@ -401,6 +402,12 @@ internal fun FirReference.statementOrigin(): IrStatementOrigin? {
                 else ->
                     null
             }
+            is FirVariableSymbol -> {
+                if ((symbol.fir as FirVariable).returnTypeRef.coneTypeSafe<ConeKotlinType>()?.isBuiltinFunctionalType(session) == true) {
+                    IrStatementOrigin.VARIABLE_AS_FUNCTION
+                } else
+                    null
+            }
             else -> null
         }
         else -> null

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/generators/CallAndReferenceGenerator.kt

@@ -186,7 +186,7 @@ class CallAndReferenceGenerator(
                             startOffset, endOffset, type, symbol,
                             typeArgumentsCount = symbol.owner.typeParameters.size,
                             valueArgumentsCount = symbol.owner.valueParameters.size,
-                            origin = qualifiedAccess.calleeReference.statementOrigin(),
+                            origin = qualifiedAccess.calleeReference.statementOrigin(session),
                             superQualifierSymbol = dispatchReceiver.superQualifierSymbol(symbol)
                         )
                     }
@@ -227,7 +227,7 @@ class CallAndReferenceGenerator(
                     )
                     is IrValueSymbol -> IrGetValueImpl(
                         startOffset, endOffset, type, symbol,
-                        origin = qualifiedAccess.calleeReference.statementOrigin()
+                        origin = qualifiedAccess.calleeReference.statementOrigin(session)
                     )
                     is IrEnumEntrySymbol -> IrGetEnumValueImpl(startOffset, endOffset, type, symbol)
                     else -> generateErrorCallExpression(startOffset, endOffset, qualifiedAccess.calleeReference, type)

compiler/testData/ir/irText/declarations/parameters/useNextParamInLambda.fir.txt

@@ -17,7 +17,7 @@ FILE fqName:<root> fileName:/useNextParamInLambda.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun f (f1: kotlin.Function0<kotlin.String>, f2: kotlin.Function0<kotlin.String>): kotlin.String declared in <root>'
         CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=kotlin.String origin=INVOKE
-          $this: GET_VAR 'f1: kotlin.Function0<kotlin.String> declared in <root>.f' type=kotlin.Function0<kotlin.String> origin=null
+          $this: GET_VAR 'f1: kotlin.Function0<kotlin.String> declared in <root>.f' type=kotlin.Function0<kotlin.String> origin=VARIABLE_AS_FUNCTION
   FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY
       VAR name:result type:kotlin.String [var]

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

@@ -48,5 +48,5 @@ FILE fqName:<root> fileName:/augmentedAssignmentWithExpression.kt
     BLOCK_BODY
       CALL 'public final fun plusAssign (x: kotlin.Int): kotlin.Unit [operator] declared in <root>.Host' type=kotlin.Unit origin=null
         $this: CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=<root>.Host origin=INVOKE
-          $this: GET_VAR 'a: kotlin.Function0<<root>.Host> declared in <root>.test4' type=kotlin.Function0<<root>.Host> origin=null
+          $this: GET_VAR 'a: kotlin.Function0<<root>.Host> declared in <root>.test4' type=kotlin.Function0<<root>.Host> origin=VARIABLE_AS_FUNCTION
         x: CONST Int type=kotlin.Int value=1

compiler/testData/ir/irText/expressions/callableReferences/boundInnerGenericConstructor.fir.txt

@@ -1,98 +0,0 @@
-FILE fqName:test fileName:/boundInnerGenericConstructor.kt
-  CLASS CLASS name:Foo modality:FINAL visibility:public superTypes:[kotlin.Any]
-    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:test.Foo<T of test.Foo>
-    TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?]
-    CONSTRUCTOR visibility:public <> () returnType:test.Foo<T of test.Foo> [primary]
-      BLOCK_BODY
-        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
-        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:Foo modality:FINAL visibility:public superTypes:[kotlin.Any]'
-    CLASS CLASS name:Inner modality:FINAL visibility:public [inner] superTypes:[kotlin.Any]
-      $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:test.Foo.Inner<P of test.Foo.Inner, T of test.Foo>
-      TYPE_PARAMETER name:P index:0 variance: superTypes:[kotlin.Any?]
-      CONSTRUCTOR visibility:public <> ($this:test.Foo<T of test.Foo>, a:T of test.Foo, b:P of test.Foo.Inner) returnType:test.Foo.Inner<P of test.Foo.Inner, T of test.Foo> [primary]
-        $outer: VALUE_PARAMETER name:<this> type:test.Foo<T of test.Foo>
-        VALUE_PARAMETER name:a index:0 type:T of test.Foo
-        VALUE_PARAMETER name:b index:1 type:P of test.Foo.Inner
-        BLOCK_BODY
-          DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
-          INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:Inner modality:FINAL visibility:public [inner] superTypes:[kotlin.Any]'
-      PROPERTY name:a visibility:public modality:FINAL [val]
-        FIELD PROPERTY_BACKING_FIELD name:a type:T of test.Foo visibility:private [final]
-          EXPRESSION_BODY
-            GET_VAR 'a: T of test.Foo declared in test.Foo.Inner.<init>' type=T of test.Foo origin=INITIALIZE_PROPERTY_FROM_PARAMETER
-        FUN DEFAULT_PROPERTY_ACCESSOR name:<get-a> visibility:public modality:FINAL <> ($this:test.Foo.Inner<P of test.Foo.Inner, T of test.Foo>) returnType:T of test.Foo
-          correspondingProperty: PROPERTY name:a visibility:public modality:FINAL [val]
-          $this: VALUE_PARAMETER name:<this> type:test.Foo.Inner<P of test.Foo.Inner, T of test.Foo>
-          BLOCK_BODY
-            RETURN type=kotlin.Nothing from='public final fun <get-a> (): T of test.Foo declared in test.Foo.Inner'
-              GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:a type:T of test.Foo visibility:private [final]' type=T of test.Foo origin=null
-                receiver: GET_VAR '<this>: test.Foo.Inner<P of test.Foo.Inner, T of test.Foo> declared in test.Foo.Inner.<get-a>' type=test.Foo.Inner<P of test.Foo.Inner, T of test.Foo> origin=null
-      PROPERTY name:b visibility:public modality:FINAL [val]
-        FIELD PROPERTY_BACKING_FIELD name:b type:P of test.Foo.Inner visibility:private [final]
-          EXPRESSION_BODY
-            GET_VAR 'b: P of test.Foo.Inner declared in test.Foo.Inner.<init>' type=P of test.Foo.Inner origin=INITIALIZE_PROPERTY_FROM_PARAMETER
-        FUN DEFAULT_PROPERTY_ACCESSOR name:<get-b> visibility:public modality:FINAL <> ($this:test.Foo.Inner<P of test.Foo.Inner, T of test.Foo>) returnType:P of test.Foo.Inner
-          correspondingProperty: PROPERTY name:b visibility:public modality:FINAL [val]
-          $this: VALUE_PARAMETER name:<this> type:test.Foo.Inner<P of test.Foo.Inner, T of test.Foo>
-          BLOCK_BODY
-            RETURN type=kotlin.Nothing from='public final fun <get-b> (): P of test.Foo.Inner declared in test.Foo.Inner'
-              GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:b type:P of test.Foo.Inner visibility:private [final]' type=P of test.Foo.Inner origin=null
-                receiver: GET_VAR '<this>: test.Foo.Inner<P of test.Foo.Inner, T of test.Foo> declared in test.Foo.Inner.<get-b>' type=test.Foo.Inner<P of test.Foo.Inner, T of test.Foo> origin=null
-      FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($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:foo visibility:public modality:FINAL <A, B> (a:A of test.foo, b:B of test.foo, x:kotlin.Function2<A of test.foo, B of test.foo, test.Foo.Inner<B of test.foo, A of test.foo>>) returnType:test.Foo.Inner<B of test.foo, A of test.foo> [inline]
-    TYPE_PARAMETER name:A index:0 variance: superTypes:[kotlin.Any?]
-    TYPE_PARAMETER name:B index:1 variance: superTypes:[kotlin.Any?]
-    VALUE_PARAMETER name:a index:0 type:A of test.foo
-    VALUE_PARAMETER name:b index:1 type:B of test.foo
-    VALUE_PARAMETER name:x index:2 type:kotlin.Function2<A of test.foo, B of test.foo, test.Foo.Inner<B of test.foo, A of test.foo>>
-    BLOCK_BODY
-      RETURN type=kotlin.Nothing from='public final fun foo <A, B> (a: A of test.foo, b: B of test.foo, x: kotlin.Function2<A of test.foo, B of test.foo, test.Foo.Inner<B of test.foo, A of test.foo>>): test.Foo.Inner<B of test.foo, A of test.foo> [inline] declared in test'
-        CALL 'public abstract fun invoke (p1: P1 of kotlin.Function2, p2: P2 of kotlin.Function2): R of kotlin.Function2 [operator] declared in kotlin.Function2' type=test.Foo.Inner<B of test.foo, A of test.foo> origin=INVOKE
-          $this: GET_VAR 'x: kotlin.Function2<A of test.foo, B of test.foo, test.Foo.Inner<B of test.foo, A of test.foo>> declared in test.foo' type=kotlin.Function2<A of test.foo, B of test.foo, test.Foo.Inner<B of test.foo, A of test.foo>> origin=null
-          p1: GET_VAR 'a: A of test.foo declared in test.foo' type=A of test.foo origin=null
-          p2: GET_VAR 'b: B of test.foo declared in test.foo' type=B of test.foo origin=null
-  FUN name:box visibility:public modality:FINAL <> () returnType:kotlin.String
-    BLOCK_BODY
-      VAR name:z type:test.Foo<kotlin.String> [val]
-        CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in test.Foo' type=test.Foo<kotlin.String> origin=null
-          <class: T>: kotlin.String
-      VAR name:foo type:test.Foo.Inner<kotlin.String, kotlin.String> [val]
-        CALL 'public final fun foo <A, B> (a: A of test.foo, b: B of test.foo, x: kotlin.Function2<A of test.foo, B of test.foo, test.Foo.Inner<B of test.foo, A of test.foo>>): test.Foo.Inner<B of test.foo, A of test.foo> [inline] declared in test' type=test.Foo.Inner<kotlin.String, kotlin.String> origin=null
-          <A>: kotlin.String
-          <B>: kotlin.String
-          a: CONST String type=kotlin.String value="O"
-          b: CONST String type=kotlin.String value="K"
-          x: FUNCTION_REFERENCE 'public constructor <init> (a: T of test.Foo, b: P of test.Foo.Inner) [primary] declared in test.Foo.Inner' type=kotlin.reflect.KFunction2<kotlin.String, kotlin.String, test.Foo.Inner<kotlin.String, kotlin.String>> origin=null reflectionTarget=<same>
-            <P>: kotlin.String
-            $this: GET_VAR 'val z: test.Foo<kotlin.String> [val] declared in test.box' type=test.Foo<kotlin.String> origin=null
-      RETURN type=kotlin.Nothing from='public final fun box (): kotlin.String declared in test'
-        CALL 'public final fun plus (other: kotlin.Any?): kotlin.String [operator] declared in kotlin.String' type=kotlin.String origin=PLUS
-          $this: CALL 'public final fun <get-a> (): T of test.Foo declared in test.Foo.Inner' type=kotlin.String origin=GET_PROPERTY
-            $this: GET_VAR 'val foo: test.Foo.Inner<kotlin.String, kotlin.String> [val] declared in test.box' type=test.Foo.Inner<kotlin.String, kotlin.String> origin=null
-          other: CALL 'public final fun <get-b> (): P of test.Foo.Inner declared in test.Foo.Inner' type=kotlin.String origin=GET_PROPERTY
-            $this: GET_VAR 'val foo: test.Foo.Inner<kotlin.String, kotlin.String> [val] declared in test.box' type=test.Foo.Inner<kotlin.String, kotlin.String> origin=null

compiler/testData/ir/irText/expressions/callableReferences/boundInnerGenericConstructor.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 package test
 
 class Foo<T> {

compiler/testData/ir/irText/expressions/callableReferences/caoWithAdaptationForSam.fir.txt

@@ -110,10 +110,10 @@ FILE fqName:<root> fileName:/caoWithAdaptationForSam.kt
         VAR IR_TEMPORARY_VARIABLE name:tmp_1 type:kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> [val]
           FUNCTION_REFERENCE 'public final fun withVararg (vararg xs: kotlin.Int): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null reflectionTarget=<same>
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /set>#' type=kotlin.Unit
-          GET_VAR 'val tmp_1: kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> [val] declared in <root>.test1' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null
+          GET_VAR 'val tmp_1: kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> [val] declared in <root>.test1' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=VARIABLE_AS_FUNCTION
           CALL 'public final fun plus (other: kotlin.Int): kotlin.Int [operator] declared in kotlin.Int' type=kotlin.Int origin=null
             $this: ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /get>#' type=kotlin.Int
-              GET_VAR 'val tmp_1: kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> [val] declared in <root>.test1' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null
+              GET_VAR 'val tmp_1: kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> [val] declared in <root>.test1' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=VARIABLE_AS_FUNCTION
             other: CONST Int type=kotlin.Int value=1
   FUN name:test2 visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
@@ -123,10 +123,10 @@ FILE fqName:<root> fileName:/caoWithAdaptationForSam.kt
         VAR IR_TEMPORARY_VARIABLE name:tmp_3 type:kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> [val]
           FUNCTION_REFERENCE 'public final fun withVararg (vararg xs: kotlin.Int): kotlin.Int declared in <root>' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null reflectionTarget=<same>
         ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /set>#' type=kotlin.Unit
-          GET_VAR 'val tmp_3: kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> [val] declared in <root>.test2' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null
+          GET_VAR 'val tmp_3: kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> [val] declared in <root>.test2' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=VARIABLE_AS_FUNCTION
           CALL 'public final fun plus (other: kotlin.Int): kotlin.Int [operator] declared in kotlin.Int' type=kotlin.Int origin=null
             $this: ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /get>#' type=kotlin.Int
-              GET_VAR 'val tmp_3: kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> [val] declared in <root>.test2' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=null
+              GET_VAR 'val tmp_3: kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> [val] declared in <root>.test2' type=kotlin.reflect.KFunction1<kotlin.IntArray, kotlin.Int> origin=VARIABLE_AS_FUNCTION
             other: CONST Int type=kotlin.Int value=1
   FUN name:test3 visibility:public modality:FINAL <> (fn:kotlin.Function1<kotlin.Int, kotlin.Unit>) returnType:kotlin.Unit
     VALUE_PARAMETER name:fn index:0 type:kotlin.Function1<kotlin.Int, kotlin.Unit>
@@ -135,16 +135,16 @@ FILE fqName:<root> fileName:/caoWithAdaptationForSam.kt
         VAR IR_TEMPORARY_VARIABLE name:tmp_4 type:<root>.A [val]
           GET_OBJECT 'CLASS OBJECT name:A modality:FINAL visibility:public superTypes:[kotlin.Any]' type=<root>.A
         VAR IR_TEMPORARY_VARIABLE name:tmp_5 type:kotlin.Function1<kotlin.Int, kotlin.Unit> [val]
-          GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.test3' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+          GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.test3' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
         CALL 'public final fun set (i: <root>.IFoo, newValue: kotlin.Int): kotlin.Unit [operator] declared in <root>' type=kotlin.Unit origin=null
           $receiver: GET_VAR 'val tmp_4: <root>.A [val] declared in <root>.test3' type=<root>.A origin=null
           i: TYPE_OP type=<root>.IFoo origin=SAM_CONVERSION typeOperand=<root>.IFoo
-            GET_VAR 'val tmp_5: kotlin.Function1<kotlin.Int, kotlin.Unit> [val] declared in <root>.test3' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+            GET_VAR 'val tmp_5: kotlin.Function1<kotlin.Int, kotlin.Unit> [val] declared in <root>.test3' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           newValue: CALL 'public final fun plus (other: kotlin.Int): kotlin.Int [operator] declared in kotlin.Int' type=kotlin.Int origin=null
             $this: CALL 'public final fun get (i: <root>.IFoo): kotlin.Int [operator] declared in <root>' type=kotlin.Int origin=null
               $receiver: GET_VAR 'val tmp_4: <root>.A [val] declared in <root>.test3' type=<root>.A origin=null
               i: TYPE_OP type=<root>.IFoo origin=SAM_CONVERSION typeOperand=<root>.IFoo
-                GET_VAR 'val tmp_5: kotlin.Function1<kotlin.Int, kotlin.Unit> [val] declared in <root>.test3' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+                GET_VAR 'val tmp_5: kotlin.Function1<kotlin.Int, kotlin.Unit> [val] declared in <root>.test3' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
             other: CONST Int type=kotlin.Int value=1
   FUN name:test4 visibility:public modality:FINAL <> (fn:kotlin.Function1<kotlin.Int, kotlin.Unit>) returnType:kotlin.Unit
     VALUE_PARAMETER name:fn index:0 type:kotlin.Function1<kotlin.Int, kotlin.Unit>
@@ -152,13 +152,13 @@ FILE fqName:<root> fileName:/caoWithAdaptationForSam.kt
       WHEN type=kotlin.Unit origin=IF
         BRANCH
           if: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=<root>.IFoo
-            GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.test4' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+            GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.test4' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           then: BLOCK type=kotlin.Unit origin=null
             VAR IR_TEMPORARY_VARIABLE name:tmp_6 type:<root>.A [val]
               GET_OBJECT 'CLASS OBJECT name:A modality:FINAL visibility:public superTypes:[kotlin.Any]' type=<root>.A
             VAR IR_TEMPORARY_VARIABLE name:tmp_7 type:<root>.IFoo [val]
               TYPE_OP type=<root>.IFoo origin=IMPLICIT_CAST typeOperand=<root>.IFoo
-                GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.test4' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+                GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.test4' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
             CALL 'public final fun set (i: <root>.IFoo, newValue: kotlin.Int): kotlin.Unit [operator] declared in <root>' type=kotlin.Unit origin=null
               $receiver: GET_VAR 'val tmp_6: <root>.A [val] declared in <root>.test4' type=<root>.A origin=null
               i: GET_VAR 'val tmp_7: <root>.IFoo [val] declared in <root>.test4' type=<root>.IFoo origin=null
@@ -182,12 +182,12 @@ FILE fqName:<root> fileName:/caoWithAdaptationForSam.kt
         CALL 'public final fun set (i: <root>.IFoo, newValue: kotlin.Int): kotlin.Unit [operator] declared in <root>' type=kotlin.Unit origin=null
           $receiver: GET_VAR 'val tmp_8: <root>.A [val] declared in <root>.test5' type=<root>.A origin=null
           i: TYPE_OP type=<root>.IFoo origin=SAM_CONVERSION typeOperand=<root>.IFoo
-            GET_VAR 'val tmp_9: kotlin.Function1<kotlin.Int, kotlin.Unit> [val] declared in <root>.test5' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+            GET_VAR 'val tmp_9: kotlin.Function1<kotlin.Int, kotlin.Unit> [val] declared in <root>.test5' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           newValue: CALL 'public final fun plus (other: kotlin.Int): kotlin.Int [operator] declared in kotlin.Int' type=kotlin.Int origin=null
             $this: CALL 'public final fun get (i: <root>.IFoo): kotlin.Int [operator] declared in <root>' type=kotlin.Int origin=null
               $receiver: GET_VAR 'val tmp_8: <root>.A [val] declared in <root>.test5' type=<root>.A origin=null
               i: TYPE_OP type=<root>.IFoo origin=SAM_CONVERSION typeOperand=<root>.IFoo
-                GET_VAR 'val tmp_9: kotlin.Function1<kotlin.Int, kotlin.Unit> [val] declared in <root>.test5' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+                GET_VAR 'val tmp_9: kotlin.Function1<kotlin.Int, kotlin.Unit> [val] declared in <root>.test5' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
             other: CONST Int type=kotlin.Int value=1
   FUN name:test6 visibility:public modality:FINAL <> (a:kotlin.Any) returnType:kotlin.Unit
     VALUE_PARAMETER name:a index:0 type:kotlin.Any

compiler/testData/ir/irText/expressions/callableReferences/constructorWithAdaptedArguments.fir.txt

@@ -4,7 +4,7 @@ FILE fqName:<root> fileName:/constructorWithAdaptedArguments.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun use (fn: kotlin.Function1<kotlin.Int, kotlin.Any>): kotlin.Any declared in <root>'
         CALL 'public abstract fun invoke (p1: P1 of kotlin.Function1): R of kotlin.Function1 [operator] declared in kotlin.Function1' type=kotlin.Any origin=INVOKE
-          $this: GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Any> declared in <root>.use' type=kotlin.Function1<kotlin.Int, kotlin.Any> origin=null
+          $this: GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Any> declared in <root>.use' type=kotlin.Function1<kotlin.Int, kotlin.Any> origin=VARIABLE_AS_FUNCTION
           p1: CONST Int type=kotlin.Int value=42
   CLASS CLASS name:C modality:FINAL visibility:public superTypes:[kotlin.Any]
     $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.C

compiler/testData/ir/irText/expressions/callableReferences/kt37131.fir.txt

@@ -44,7 +44,7 @@ FILE fqName:<root> fileName:/kt37131.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun use (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>.use' type=kotlin.Function0<kotlin.Any> origin=null
+          $this: GET_VAR 'fn: kotlin.Function0<kotlin.Any> declared in <root>.use' type=kotlin.Function0<kotlin.Any> origin=VARIABLE_AS_FUNCTION
   FUN name:testFn visibility:public modality:FINAL <> () returnType:kotlin.Any
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun testFn (): kotlin.Any declared in <root>'

compiler/testData/ir/irText/expressions/callableReferences/withAdaptedArguments.fir.txt

@@ -4,14 +4,14 @@ FILE fqName:<root> fileName:/withAdaptedArguments.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun use (fn: kotlin.Function1<kotlin.Int, kotlin.String>): kotlin.String declared in <root>'
         CALL 'public abstract fun invoke (p1: P1 of kotlin.Function1): R of kotlin.Function1 [operator] declared in kotlin.Function1' type=kotlin.String origin=INVOKE
-          $this: GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.String> declared in <root>.use' type=kotlin.Function1<kotlin.Int, kotlin.String> origin=null
+          $this: GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.String> declared in <root>.use' type=kotlin.Function1<kotlin.Int, kotlin.String> origin=VARIABLE_AS_FUNCTION
           p1: CONST Int type=kotlin.Int value=1
   FUN name:use0 visibility:public modality:FINAL <> (fn:kotlin.Function0<kotlin.String>) returnType:kotlin.String
     VALUE_PARAMETER name:fn index:0 type:kotlin.Function0<kotlin.String>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun use0 (fn: kotlin.Function0<kotlin.String>): kotlin.String declared in <root>'
         CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=kotlin.String origin=INVOKE
-          $this: GET_VAR 'fn: kotlin.Function0<kotlin.String> declared in <root>.use0' type=kotlin.Function0<kotlin.String> origin=null
+          $this: GET_VAR 'fn: kotlin.Function0<kotlin.String> declared in <root>.use0' type=kotlin.Function0<kotlin.String> origin=VARIABLE_AS_FUNCTION
   FUN name:coerceToUnit visibility:public modality:FINAL <> (fn:kotlin.Function1<kotlin.Int, kotlin.Unit>) returnType:kotlin.Unit
     VALUE_PARAMETER name:fn index:0 type:kotlin.Function1<kotlin.Int, kotlin.Unit>
     BLOCK_BODY

compiler/testData/ir/irText/expressions/callableReferences/withArgumentAdaptationAndReceiver.fir.txt

@@ -3,7 +3,7 @@ FILE fqName:<root> fileName:/withArgumentAdaptationAndReceiver.kt
     VALUE_PARAMETER name:fn index:0 type:kotlin.Function1<kotlin.Int, kotlin.Unit>
     BLOCK_BODY
       CALL 'public abstract fun invoke (p1: P1 of kotlin.Function1): R of kotlin.Function1 [operator] declared in kotlin.Function1' type=kotlin.Unit origin=INVOKE
-        $this: GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.use' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+        $this: GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.use' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
         p1: CONST Int type=kotlin.Int value=1
   CLASS CLASS name:Host modality:FINAL visibility:public superTypes:[kotlin.Any]
     $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Host

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

@@ -5,7 +5,7 @@ FILE fqName:<root> fileName:/catchParameterAccess.kt
       RETURN type=kotlin.Nothing from='public final fun test (f: kotlin.Function0<kotlin.Unit>): kotlin.Unit declared in <root>'
         TRY type=kotlin.Unit
           try: CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=kotlin.Unit origin=INVOKE
-            $this: GET_VAR 'f: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
+            $this: GET_VAR 'f: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           CATCH parameter=val e: java.lang.Exception [val] declared in <root>.test
             VAR name:e type:java.lang.Exception [val]
             THROW type=kotlin.Nothing

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

@@ -5,7 +5,7 @@ FILE fqName:<root> fileName:/extFunInvokeAsFun.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun with1 (receiver: kotlin.Any?, block: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Any?, kotlin.Unit>): kotlin.Unit declared in <root>'
         CALL 'public abstract fun invoke (p1: P1 of kotlin.Function1): R of kotlin.Function1 [operator] declared in kotlin.Function1' type=kotlin.Unit origin=INVOKE
-          $this: GET_VAR 'block: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Any?, kotlin.Unit> declared in <root>.with1' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Any?, kotlin.Unit> origin=null
+          $this: GET_VAR 'block: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Any?, kotlin.Unit> declared in <root>.with1' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Any?, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           p1: GET_VAR 'receiver: kotlin.Any? declared in <root>.with1' type=kotlin.Any? origin=null
   FUN name:with2 visibility:public modality:FINAL <> (receiver:kotlin.Any?, block:@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Any?, kotlin.Unit>) returnType:kotlin.Unit
     VALUE_PARAMETER name:receiver index:0 type:kotlin.Any?
@@ -13,5 +13,5 @@ FILE fqName:<root> fileName:/extFunInvokeAsFun.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun with2 (receiver: kotlin.Any?, block: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Any?, kotlin.Unit>): kotlin.Unit declared in <root>'
         CALL 'public abstract fun invoke (p1: P1 of kotlin.Function1): R of kotlin.Function1 [operator] declared in kotlin.Function1' type=kotlin.Unit origin=INVOKE
-          $this: GET_VAR 'block: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Any?, kotlin.Unit> declared in <root>.with2' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Any?, kotlin.Unit> origin=null
+          $this: GET_VAR 'block: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Any?, kotlin.Unit> declared in <root>.with2' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Any?, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           p1: GET_VAR 'receiver: kotlin.Any? declared in <root>.with2' type=kotlin.Any? origin=null

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

@@ -16,7 +16,7 @@ FILE fqName:<root> fileName:/extFunSafeInvoke.kt
             BRANCH
               if: CONST Boolean type=kotlin.Boolean value=true
               then: CALL 'public abstract fun invoke (p1: P1 of kotlin.Function3, p2: P2 of kotlin.Function3, p3: P3 of kotlin.Function3): R of kotlin.Function3 [operator] declared in kotlin.Function3' type=kotlin.Unit origin=INVOKE
-                $this: GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function3<kotlin.Any, kotlin.Int, kotlin.String, kotlin.Unit> declared in <root>.test' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function3<kotlin.Any, kotlin.Int, kotlin.String, kotlin.Unit> origin=null
+                $this: GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function3<kotlin.Any, kotlin.Int, kotlin.String, kotlin.Unit> declared in <root>.test' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function3<kotlin.Any, kotlin.Int, kotlin.String, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
                 p1: GET_VAR 'val tmp_0: kotlin.Any? [val] declared in <root>.test' type=kotlin.Any? origin=null
                 p2: CONST Int type=kotlin.Int value=42
                 p3: CONST String type=kotlin.String value="Hello"

compiler/testData/ir/irText/expressions/funInterface/arrayAsVarargAfterSamArgument_fi.txt

@@ -52,12 +52,12 @@ FILE fqName:<root> fileName:/arrayAsVarargAfterSamArgument_fi.kt
             GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       CALL 'public final fun foo1 (r: <root>.IRunnable, vararg s: kotlin.String): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         r: TYPE_OP type=<root>.IRunnable origin=SAM_CONVERSION typeOperand=<root>.IRunnable
-          GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
+          GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
         s: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
           GET_VAR 's: kotlin.String declared in <root>.test' type=kotlin.String origin=null
       CALL 'public final fun foo1 (r: <root>.IRunnable, vararg s: kotlin.String): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         r: TYPE_OP type=<root>.IRunnable origin=SAM_CONVERSION typeOperand=<root>.IRunnable
-          GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
+          GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
         s: VARARG type=kotlin.Array<out kotlin.String> varargElementType=kotlin.String
           SPREAD_ELEMENT
             GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
@@ -103,7 +103,7 @@ FILE fqName:<root> fileName:/arrayAsVarargAfterSamArgument_fi.kt
             GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
       CALL 'public final fun foo2 (r1: <root>.IRunnable, r2: <root>.IRunnable, vararg s: kotlin.String): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         r1: TYPE_OP type=<root>.IRunnable origin=SAM_CONVERSION typeOperand=<root>.IRunnable
-          GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
+          GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
         r2: TYPE_OP type=<root>.IRunnable origin=SAM_CONVERSION typeOperand=<root>.IRunnable
           FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
@@ -114,7 +114,7 @@ FILE fqName:<root> fileName:/arrayAsVarargAfterSamArgument_fi.kt
           GET_VAR 's: kotlin.String declared in <root>.test' type=kotlin.String origin=null
       CALL 'public final fun foo2 (r1: <root>.IRunnable, r2: <root>.IRunnable, vararg s: kotlin.String): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         r1: TYPE_OP type=<root>.IRunnable origin=SAM_CONVERSION typeOperand=<root>.IRunnable
-          GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
+          GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
         r2: TYPE_OP type=<root>.IRunnable origin=SAM_CONVERSION typeOperand=<root>.IRunnable
           FUN_EXPR type=kotlin.Function0<kotlin.Unit> origin=LAMBDA
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit

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

@@ -41,10 +41,10 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
       WHEN type=kotlin.Unit origin=IF
         BRANCH
           if: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=<root>.KRunnable
-            GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test1' type=kotlin.Function0<kotlin.Unit> origin=null
+            GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test1' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           then: CALL 'public final fun run1 (r: <root>.KRunnable): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
             r: TYPE_OP type=<root>.KRunnable origin=IMPLICIT_CAST typeOperand=<root>.KRunnable
-              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test1' type=kotlin.Function0<kotlin.Unit> origin=null
+              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test1' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:test2 visibility:public modality:FINAL <> (a:<root>.KRunnable) returnType:kotlin.Unit
     VALUE_PARAMETER name:a index:0 type:<root>.KRunnable
     BLOCK_BODY
@@ -60,12 +60,12 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
       WHEN type=kotlin.Unit origin=IF
         BRANCH
           if: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=<root>.KRunnable
-            GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=null
+            GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           then: CALL 'public final fun run2 (r1: <root>.KRunnable, r2: <root>.KRunnable): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
             r1: TYPE_OP type=<root>.KRunnable origin=IMPLICIT_CAST typeOperand=<root>.KRunnable
-              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=null
+              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
             r2: TYPE_OP type=<root>.KRunnable origin=IMPLICIT_CAST typeOperand=<root>.KRunnable
-              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=null
+              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:test4 visibility:public modality:FINAL <> (a:kotlin.Function0<kotlin.Unit>, b:kotlin.Function0<kotlin.Unit>) returnType:kotlin.Unit
     VALUE_PARAMETER name:a index:0 type:kotlin.Function0<kotlin.Unit>
     VALUE_PARAMETER name:b index:1 type:kotlin.Function0<kotlin.Unit>
@@ -73,12 +73,12 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
       WHEN type=kotlin.Unit origin=IF
         BRANCH
           if: TYPE_OP type=kotlin.Boolean origin=INSTANCEOF typeOperand=<root>.KRunnable
-            GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=null
+            GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           then: CALL 'public final fun run2 (r1: <root>.KRunnable, r2: <root>.KRunnable): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
             r1: TYPE_OP type=<root>.KRunnable origin=IMPLICIT_CAST typeOperand=<root>.KRunnable
-              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=null
+              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
             r2: TYPE_OP type=<root>.KRunnable origin=SAM_CONVERSION typeOperand=<root>.KRunnable
-              GET_VAR 'b: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=null
+              GET_VAR 'b: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:test5 visibility:public modality:FINAL <> (a:kotlin.Any) returnType:kotlin.Unit
     VALUE_PARAMETER name:a index:0 type:kotlin.Any
     BLOCK_BODY
@@ -121,7 +121,7 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
         r: TYPE_OP type=<root>.KRunnable origin=SAM_CONVERSION typeOperand=<root>.KRunnable
           CALL 'public final fun id <T> (x: T of <root>.id): T of <root>.id declared in <root>' type=kotlin.Function0<kotlin.Unit> origin=null
             <T>: kotlin.Function0<kotlin.Unit>
-            x: GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test8' type=kotlin.Function0<kotlin.Unit> origin=null
+            x: GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test8' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:test9 visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
       CALL 'public final fun run1 (r: <root>.KRunnable): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null

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

@@ -20,7 +20,7 @@ FILE fqName:<root> fileName:/genericConstructorCallWithTypeArguments.kt
               BLOCK_BODY
                 RETURN type=kotlin.Nothing from='local final fun <anonymous> (it: kotlin.Int): T of <root>.testArray declared in <root>.testArray'
                   CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=T of <root>.testArray origin=INVOKE
-                    $this: GET_VAR 'block: kotlin.Function0<T of <root>.testArray> [crossinline] declared in <root>.testArray' type=kotlin.Function0<T of <root>.testArray> origin=null
+                    $this: GET_VAR 'block: kotlin.Function0<T of <root>.testArray> [crossinline] declared in <root>.testArray' type=kotlin.Function0<T of <root>.testArray> origin=VARIABLE_AS_FUNCTION
   CLASS CLASS name:Box modality:FINAL visibility:public superTypes:[kotlin.Any]
     $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.Box<T of <root>.Box>
     TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?]

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

@@ -72,5 +72,5 @@ FILE fqName:<root> fileName:/implicitCastToNonNull.kt
               arg0: GET_VAR 'x: T of <root>.test5 declared in <root>.test5' type=T of <root>.test5 origin=null
               arg1: CONST Null type=kotlin.Nothing? value=null
           then: CALL 'public abstract fun invoke (p1: P1 of kotlin.Function1): R of kotlin.Function1 [operator] declared in kotlin.Function1' type=kotlin.Unit origin=INVOKE
-            $this: GET_VAR 'fn: kotlin.Function1<S of <root>.test5, kotlin.Unit> declared in <root>.test5' type=kotlin.Function1<S of <root>.test5, kotlin.Unit> origin=null
+            $this: GET_VAR 'fn: kotlin.Function1<S of <root>.test5, kotlin.Unit> declared in <root>.test5' type=kotlin.Function1<S of <root>.test5, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
             p1: GET_VAR 'x: T of <root>.test5 declared in <root>.test5' type=T of <root>.test5 origin=null

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

@@ -4,27 +4,27 @@ FILE fqName:<root> fileName:/nullCheckOnGenericLambdaReturn.kt
     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=null
+          $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=null
+          $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=null
+          $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=null
+          $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

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

@@ -4,13 +4,13 @@ FILE fqName:<root> fileName:/nullCheckOnLambdaReturn.kt
     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=null
+          $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=null
+          $this: GET_VAR 'fn: kotlin.Function0<kotlin.Any?> declared in <root>.checkAnyN' type=kotlin.Function0<kotlin.Any?> 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

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

@@ -23,12 +23,12 @@ FILE fqName:<root> fileName:/arrayAsVarargAfterSamArgument.kt
             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?
-        GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
+        GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
         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?
-            GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
+            GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           strs: VARARG type=kotlin.Array<out kotlin.String?>? varargElementType=kotlin.String?
             SPREAD_ELEMENT
               GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null
@@ -38,12 +38,12 @@ FILE fqName:<root> fileName:/arrayAsVarargAfterSamArgument.kt
           strs: VARARG type=kotlin.Array<out kotlin.String?>? varargElementType=kotlin.String?
             CONST String type=kotlin.String value=""
       ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /Test.foo1>#' type=kotlin.String?
-        GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
+        GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
         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?
-            GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=null
+            GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.test' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           strs: VARARG type=kotlin.Array<out kotlin.String?>? varargElementType=kotlin.String?
             SPREAD_ELEMENT
               GET_VAR 'arr: kotlin.Array<kotlin.String> declared in <root>.test' type=kotlin.Array<kotlin.String> origin=null

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

@@ -13,7 +13,7 @@ FILE fqName:<root> fileName:/samConstructors.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test2 (a: kotlin.Function0<kotlin.Unit>): java.lang.Runnable declared in <root>'
         TYPE_OP type=java.lang.Runnable origin=SAM_CONVERSION typeOperand=java.lang.Runnable
-          GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test2' type=kotlin.Function0<kotlin.Unit> origin=null
+          GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test2' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:foo visibility:public modality:FINAL <> () returnType:kotlin.Unit
     BLOCK_BODY
   FUN name:test3 visibility:public modality:FINAL <> () returnType:java.lang.Runnable

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

@@ -6,7 +6,7 @@ FILE fqName:<root> fileName:/samConversionInGenericConstructorCall.kt
         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<X of <root>.C?, X of <root>.C?>? origin=SAM_CONVERSION typeOperand=<root>.J<X of <root>.C?, X of <root>.C?>?
-            GET_VAR 'f: kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test1' type=kotlin.Function1<kotlin.String, kotlin.String> origin=null
+            GET_VAR 'f: kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test1' type=kotlin.Function1<kotlin.String, kotlin.String> origin=VARIABLE_AS_FUNCTION
   FUN name:test2 visibility:public modality:FINAL <> (x:kotlin.Any) returnType:kotlin.Unit
     VALUE_PARAMETER name:x index:0 type:kotlin.Any
     BLOCK_BODY

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

@@ -9,9 +9,9 @@ FILE fqName:<root> fileName:/samConversionInGenericConstructorCall_NI.kt
           $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<X of <root>.C?, X of <root>.C?>? origin=SAM_CONVERSION typeOperand=<root>.J<X of <root>.C?, X of <root>.C?>?
-              GET_VAR 'f1: kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test3' type=kotlin.Function1<kotlin.String, kotlin.String> origin=null
+              GET_VAR 'f1: kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test3' type=kotlin.Function1<kotlin.String, kotlin.String> origin=VARIABLE_AS_FUNCTION
           jxy: TYPE_OP type=<root>.J<kotlin.String?, Y of <root>.C.D?>? origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?, Y of <root>.C.D?>?
-            GET_VAR 'f2: kotlin.Function1<kotlin.Int, kotlin.String> declared in <root>.test3' type=kotlin.Function1<kotlin.Int, kotlin.String> origin=null
+            GET_VAR 'f2: kotlin.Function1<kotlin.Int, kotlin.String> declared in <root>.test3' type=kotlin.Function1<kotlin.Int, kotlin.String> origin=VARIABLE_AS_FUNCTION
   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?]
@@ -87,9 +87,9 @@ FILE fqName:<root> fileName:/samConversionInGenericConstructorCall_NI.kt
           $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<T1 of <root>.Outer, T1 of <root>.Outer> origin=SAM_CONVERSION typeOperand=<root>.J<T1 of <root>.Outer, T1 of <root>.Outer>
-              GET_VAR 'f: kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test4' type=kotlin.Function1<kotlin.String, kotlin.String> origin=null
+              GET_VAR 'f: kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test4' type=kotlin.Function1<kotlin.String, kotlin.String> origin=VARIABLE_AS_FUNCTION
           j12: TYPE_OP type=<root>.J<kotlin.String?, T2 of <root>.Outer.Inner> origin=SAM_CONVERSION typeOperand=<root>.J<kotlin.String?, T2 of <root>.Outer.Inner>
-            GET_VAR 'g: kotlin.Function1<kotlin.Any, kotlin.String> declared in <root>.test4' type=kotlin.Function1<kotlin.Any, kotlin.String> origin=null
+            GET_VAR 'g: kotlin.Function1<kotlin.Any, kotlin.String> declared in <root>.test4' type=kotlin.Function1<kotlin.Any, kotlin.String> origin=VARIABLE_AS_FUNCTION
   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
@@ -98,7 +98,7 @@ FILE fqName:<root> fileName:/samConversionInGenericConstructorCall_NI.kt
           <class: TClass>: kotlin.String?
           <TCtor>: kotlin.Int?
           x: TYPE_OP type=<root>.J<TCtor of <root>.G.<init>?, TClass of <root>.G?>? origin=SAM_CONVERSION typeOperand=<root>.J<TCtor of <root>.G.<init>?, TClass of <root>.G?>?
-            GET_VAR 'f: kotlin.Function1<kotlin.String, kotlin.Int> declared in <root>.testGenericJavaCtor1' type=kotlin.Function1<kotlin.String, kotlin.Int> origin=null
+            GET_VAR 'f: kotlin.Function1<kotlin.String, kotlin.Int> declared in <root>.testGenericJavaCtor1' type=kotlin.Function1<kotlin.String, kotlin.Int> origin=VARIABLE_AS_FUNCTION
   FUN name:testGenericJavaCtor2 visibility:public modality:FINAL <> (x:kotlin.Any) returnType:kotlin.Unit
     VALUE_PARAMETER name:x index:0 type:kotlin.Any
     BLOCK_BODY

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

@@ -59,7 +59,7 @@ FILE fqName:<root> fileName:/samConversionToGeneric.kt
       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<X of <root>.H.bar?>? origin=SAM_CONVERSION typeOperand=<root>.J<X of <root>.H.bar?>?
-          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
+          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=VARIABLE_AS_FUNCTION
   FUN name:test7 visibility:public modality:FINAL <T> (a:kotlin.Any) returnType:kotlin.Unit
     TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?]
     VALUE_PARAMETER name:a index:0 type:kotlin.Any
@@ -77,18 +77,18 @@ FILE fqName:<root> fileName:/samConversionToGeneric.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test8 (efn: @[ExtensionFunctionType] @[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?>
-          GET_VAR 'efn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test8' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String> origin=null
+          GET_VAR 'efn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test8' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String> origin=VARIABLE_AS_FUNCTION
   FUN name:test9 visibility:public modality:FINAL <> (efn:@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String>) returnType:kotlin.Unit
     VALUE_PARAMETER name:efn index:0 type:@[ExtensionFunctionType] @[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<X of <root>.H.bar?>? origin=SAM_CONVERSION typeOperand=<root>.J<X of <root>.H.bar?>?
-          GET_VAR 'efn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test9' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String> origin=null
+          GET_VAR 'efn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String> declared in <root>.test9' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.String> origin=VARIABLE_AS_FUNCTION
   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<Y of <root>.H.bar2x?>? origin=SAM_CONVERSION typeOperand=<root>.J2X<Y of <root>.H.bar2x?>?
-          GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.String> declared in <root>.test10' type=kotlin.Function1<kotlin.Int, kotlin.String> origin=null
+          GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.String> declared in <root>.test10' type=kotlin.Function1<kotlin.Int, kotlin.String> origin=VARIABLE_AS_FUNCTION

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

@@ -33,9 +33,9 @@ FILE fqName:<root> fileName:/samConversions.kt
       CALL 'public open fun run2 (r1: java.lang.Runnable?, r2: java.lang.Runnable?): kotlin.Unit declared in <root>.J' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.J declared in <root>.test3' type=<root>.J origin=null
         r1: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=null
+          GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
         r2: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-          GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=null
+          GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:test4 visibility:public modality:FINAL <> ($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>
@@ -48,7 +48,7 @@ FILE fqName:<root> fileName:/samConversions.kt
           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
+              then: GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
             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
+              then: GET_VAR 'b: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION

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

@@ -5,34 +5,34 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
       WHEN type=kotlin.Unit origin=IF
         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
+            GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test1' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           then: 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=IMPLICIT_CAST typeOperand=java.lang.Runnable
-              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test1' type=kotlin.Function0<kotlin.Unit> origin=null
+              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test1' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:test2 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
       WHEN type=kotlin.Unit origin=IF
         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
+            GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test2' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           then: CALL 'public open fun run1 (r: 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
+              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test2' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:test3 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
       WHEN type=kotlin.Unit origin=IF
         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
+            GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           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
             $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
+              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
             r2: 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
+              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test3' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:test4 visibility:public modality:FINAL <> (a:kotlin.Function0<kotlin.Unit>, b:kotlin.Function0<kotlin.Unit>) returnType:kotlin.Unit
     VALUE_PARAMETER name:a index:0 type:kotlin.Function0<kotlin.Unit>
     VALUE_PARAMETER name:b index:1 type:kotlin.Function0<kotlin.Unit>
@@ -40,13 +40,13 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
       WHEN type=kotlin.Unit origin=IF
         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
+            GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           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
             $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
+              GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
             r2: TYPE_OP type=java.lang.Runnable? origin=SAM_CONVERSION typeOperand=java.lang.Runnable?
-              GET_VAR 'b: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=null
+              GET_VAR 'b: kotlin.Function0<kotlin.Unit> declared in <root>.test4' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:test5 visibility:public modality:FINAL <> (a:kotlin.Any) returnType:kotlin.Unit
     VALUE_PARAMETER name:a index:0 type:kotlin.Any
     BLOCK_BODY
@@ -90,17 +90,17 @@ FILE fqName:<root> fileName:/samConversionsWithSmartCasts.kt
     BLOCK_BODY
       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
+          GET_VAR 'a: kotlin.Function1<kotlin.Int, kotlin.Int> declared in <root>.test7' type=kotlin.Function1<kotlin.Int, kotlin.Int> origin=VARIABLE_AS_FUNCTION
       ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /J.run1>#' type=kotlin.Unit
         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
+          GET_VAR 'a: kotlin.Function1<kotlin.Int, kotlin.Int> declared in <root>.test7' type=kotlin.Function1<kotlin.Int, kotlin.Int> origin=VARIABLE_AS_FUNCTION
   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
       ERROR_CALL 'Unresolved reference: <Inapplicable(INAPPLICABLE): /J.run1>#' type=kotlin.Unit
         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: GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test8' type=kotlin.Function0<kotlin.Unit> origin=null
+          x: GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.test8' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   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

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

@@ -30,7 +30,7 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
       CALL 'public final fun useSuspend (sfn: kotlin.coroutines.SuspendFunction0<kotlin.Unit>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         sfn: BLOCK type=kotlin.coroutines.SuspendFunction0<kotlin.Unit> origin=SUSPEND_CONVERSION
           VAR IR_TEMPORARY_VARIABLE name:tmp_0 type:kotlin.Function0<kotlin.Unit> [val]
-            GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.testSimple' type=kotlin.Function0<kotlin.Unit> origin=null
+            GET_VAR 'fn: kotlin.Function0<kotlin.Unit> declared in <root>.testSimple' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           FUN_EXPR type=kotlin.coroutines.SuspendFunction0<kotlin.Unit> origin=SUSPEND_CONVERSION
             FUN ADAPTER_FOR_SUSPEND_CONVERSION name:suspendConversion visibility:local modality:FINAL <> () returnType:kotlin.Unit [suspend]
               BLOCK_BODY
@@ -53,7 +53,7 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
       CALL 'public final fun useSuspendExt (sfn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<kotlin.Int, kotlin.Unit>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         sfn: BLOCK type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<kotlin.Int, kotlin.Unit> origin=SUSPEND_CONVERSION
           VAR IR_TEMPORARY_VARIABLE name:tmp_2 type:@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> [val]
-            GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testExtAsExt' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+            GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testExtAsExt' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           FUN_EXPR type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<kotlin.Int, kotlin.Unit> origin=SUSPEND_CONVERSION
             FUN ADAPTER_FOR_SUSPEND_CONVERSION name:suspendConversion visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit [suspend]
               VALUE_PARAMETER ADAPTER_PARAMETER_FOR_SUSPEND_CONVERSION name:p0 index:0 type:kotlin.Int
@@ -67,7 +67,7 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
       CALL 'public final fun useSuspendArg (sfn: kotlin.coroutines.SuspendFunction1<kotlin.Int, kotlin.Unit>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         sfn: BLOCK type=kotlin.coroutines.SuspendFunction1<kotlin.Int, kotlin.Unit> origin=SUSPEND_CONVERSION
           VAR IR_TEMPORARY_VARIABLE name:tmp_3 type:@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> [val]
-            GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testExtAsSimple' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+            GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testExtAsSimple' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           FUN_EXPR type=kotlin.coroutines.SuspendFunction1<kotlin.Int, kotlin.Unit> origin=SUSPEND_CONVERSION
             FUN ADAPTER_FOR_SUSPEND_CONVERSION name:suspendConversion visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit [suspend]
               VALUE_PARAMETER ADAPTER_PARAMETER_FOR_SUSPEND_CONVERSION name:p0 index:0 type:kotlin.Int
@@ -81,7 +81,7 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
       CALL 'public final fun useSuspendExt (sfn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<kotlin.Int, kotlin.Unit>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         sfn: BLOCK type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<kotlin.Int, kotlin.Unit> origin=SUSPEND_CONVERSION
           VAR IR_TEMPORARY_VARIABLE name:tmp_4 type:kotlin.Function1<kotlin.Int, kotlin.Unit> [val]
-            GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testSimpleAsExt' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+            GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testSimpleAsExt' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           FUN_EXPR type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<kotlin.Int, kotlin.Unit> origin=SUSPEND_CONVERSION
             FUN ADAPTER_FOR_SUSPEND_CONVERSION name:suspendConversion visibility:local modality:FINAL <> (p0:kotlin.Int) returnType:kotlin.Unit [suspend]
               VALUE_PARAMETER ADAPTER_PARAMETER_FOR_SUSPEND_CONVERSION name:p0 index:0 type:kotlin.Int
@@ -96,7 +96,7 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
         <T>: kotlin.Int
         sfn: BLOCK type=kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendArgT, kotlin.Unit> origin=SUSPEND_CONVERSION
           VAR IR_TEMPORARY_VARIABLE name:tmp_5 type:kotlin.Function1<kotlin.Int, kotlin.Unit> [val]
-            GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testSimpleAsSimpleT' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+            GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testSimpleAsSimpleT' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           FUN_EXPR type=kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendArgT, kotlin.Unit> origin=SUSPEND_CONVERSION
             FUN ADAPTER_FOR_SUSPEND_CONVERSION name:suspendConversion visibility:local modality:FINAL <> (p0:T of <root>.useSuspendArgT) returnType:kotlin.Unit [suspend]
               VALUE_PARAMETER ADAPTER_PARAMETER_FOR_SUSPEND_CONVERSION name:p0 index:0 type:T of <root>.useSuspendArgT
@@ -111,7 +111,7 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
         <T>: kotlin.Int
         sfn: BLOCK type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendExtT, kotlin.Unit> origin=SUSPEND_CONVERSION
           VAR IR_TEMPORARY_VARIABLE name:tmp_6 type:kotlin.Function1<kotlin.Int, kotlin.Unit> [val]
-            GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testSimpleAsExtT' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+            GET_VAR 'fn: kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testSimpleAsExtT' type=kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           FUN_EXPR type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendExtT, kotlin.Unit> origin=SUSPEND_CONVERSION
             FUN ADAPTER_FOR_SUSPEND_CONVERSION name:suspendConversion visibility:local modality:FINAL <> (p0:T of <root>.useSuspendExtT) returnType:kotlin.Unit [suspend]
               VALUE_PARAMETER ADAPTER_PARAMETER_FOR_SUSPEND_CONVERSION name:p0 index:0 type:T of <root>.useSuspendExtT
@@ -126,7 +126,7 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
         <T>: kotlin.Int
         sfn: BLOCK type=kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendArgT, kotlin.Unit> origin=SUSPEND_CONVERSION
           VAR IR_TEMPORARY_VARIABLE name:tmp_7 type:@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> [val]
-            GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testExtAsSimpleT' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+            GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testExtAsSimpleT' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           FUN_EXPR type=kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendArgT, kotlin.Unit> origin=SUSPEND_CONVERSION
             FUN ADAPTER_FOR_SUSPEND_CONVERSION name:suspendConversion visibility:local modality:FINAL <> (p0:T of <root>.useSuspendArgT) returnType:kotlin.Unit [suspend]
               VALUE_PARAMETER ADAPTER_PARAMETER_FOR_SUSPEND_CONVERSION name:p0 index:0 type:T of <root>.useSuspendArgT
@@ -141,7 +141,7 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
         <T>: kotlin.Int
         sfn: BLOCK type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendExtT, kotlin.Unit> origin=SUSPEND_CONVERSION
           VAR IR_TEMPORARY_VARIABLE name:tmp_8 type:@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> [val]
-            GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testExtAsExtT' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> origin=null
+            GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> declared in <root>.testExtAsExtT' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.Int, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           FUN_EXPR type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendExtT, kotlin.Unit> origin=SUSPEND_CONVERSION
             FUN ADAPTER_FOR_SUSPEND_CONVERSION name:suspendConversion visibility:local modality:FINAL <> (p0:T of <root>.useSuspendExtT) returnType:kotlin.Unit [suspend]
               VALUE_PARAMETER ADAPTER_PARAMETER_FOR_SUSPEND_CONVERSION name:p0 index:0 type:T of <root>.useSuspendExtT
@@ -157,7 +157,7 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
         <T>: S of <root>.testSimpleSAsSimpleT
         sfn: BLOCK type=kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendArgT, kotlin.Unit> origin=SUSPEND_CONVERSION
           VAR IR_TEMPORARY_VARIABLE name:tmp_9 type:kotlin.Function1<S of <root>.testSimpleSAsSimpleT, kotlin.Unit> [val]
-            GET_VAR 'fn: kotlin.Function1<S of <root>.testSimpleSAsSimpleT, kotlin.Unit> declared in <root>.testSimpleSAsSimpleT' type=kotlin.Function1<S of <root>.testSimpleSAsSimpleT, kotlin.Unit> origin=null
+            GET_VAR 'fn: kotlin.Function1<S of <root>.testSimpleSAsSimpleT, kotlin.Unit> declared in <root>.testSimpleSAsSimpleT' type=kotlin.Function1<S of <root>.testSimpleSAsSimpleT, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           FUN_EXPR type=kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendArgT, kotlin.Unit> origin=SUSPEND_CONVERSION
             FUN ADAPTER_FOR_SUSPEND_CONVERSION name:suspendConversion visibility:local modality:FINAL <> (p0:T of <root>.useSuspendArgT) returnType:kotlin.Unit [suspend]
               VALUE_PARAMETER ADAPTER_PARAMETER_FOR_SUSPEND_CONVERSION name:p0 index:0 type:T of <root>.useSuspendArgT
@@ -173,7 +173,7 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
         <T>: S of <root>.testSimpleSAsExtT
         sfn: BLOCK type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendExtT, kotlin.Unit> origin=SUSPEND_CONVERSION
           VAR IR_TEMPORARY_VARIABLE name:tmp_10 type:kotlin.Function1<S of <root>.testSimpleSAsExtT, kotlin.Unit> [val]
-            GET_VAR 'fn: kotlin.Function1<S of <root>.testSimpleSAsExtT, kotlin.Unit> declared in <root>.testSimpleSAsExtT' type=kotlin.Function1<S of <root>.testSimpleSAsExtT, kotlin.Unit> origin=null
+            GET_VAR 'fn: kotlin.Function1<S of <root>.testSimpleSAsExtT, kotlin.Unit> declared in <root>.testSimpleSAsExtT' type=kotlin.Function1<S of <root>.testSimpleSAsExtT, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           FUN_EXPR type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendExtT, kotlin.Unit> origin=SUSPEND_CONVERSION
             FUN ADAPTER_FOR_SUSPEND_CONVERSION name:suspendConversion visibility:local modality:FINAL <> (p0:T of <root>.useSuspendExtT) returnType:kotlin.Unit [suspend]
               VALUE_PARAMETER ADAPTER_PARAMETER_FOR_SUSPEND_CONVERSION name:p0 index:0 type:T of <root>.useSuspendExtT
@@ -189,7 +189,7 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
         <T>: S of <root>.testExtSAsSimpleT
         sfn: BLOCK type=kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendArgT, kotlin.Unit> origin=SUSPEND_CONVERSION
           VAR IR_TEMPORARY_VARIABLE name:tmp_11 type:@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<S of <root>.testExtSAsSimpleT, kotlin.Unit> [val]
-            GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<S of <root>.testExtSAsSimpleT, kotlin.Unit> declared in <root>.testExtSAsSimpleT' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<S of <root>.testExtSAsSimpleT, kotlin.Unit> origin=null
+            GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<S of <root>.testExtSAsSimpleT, kotlin.Unit> declared in <root>.testExtSAsSimpleT' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<S of <root>.testExtSAsSimpleT, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           FUN_EXPR type=kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendArgT, kotlin.Unit> origin=SUSPEND_CONVERSION
             FUN ADAPTER_FOR_SUSPEND_CONVERSION name:suspendConversion visibility:local modality:FINAL <> (p0:T of <root>.useSuspendArgT) returnType:kotlin.Unit [suspend]
               VALUE_PARAMETER ADAPTER_PARAMETER_FOR_SUSPEND_CONVERSION name:p0 index:0 type:T of <root>.useSuspendArgT
@@ -205,7 +205,7 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
         <T>: S of <root>.testExtSAsExtT
         sfn: BLOCK type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendExtT, kotlin.Unit> origin=SUSPEND_CONVERSION
           VAR IR_TEMPORARY_VARIABLE name:tmp_12 type:@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<S of <root>.testExtSAsExtT, kotlin.Unit> [val]
-            GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<S of <root>.testExtSAsExtT, kotlin.Unit> declared in <root>.testExtSAsExtT' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<S of <root>.testExtSAsExtT, kotlin.Unit> origin=null
+            GET_VAR 'fn: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<S of <root>.testExtSAsExtT, kotlin.Unit> declared in <root>.testExtSAsExtT' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<S of <root>.testExtSAsExtT, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           FUN_EXPR type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction1<T of <root>.useSuspendExtT, kotlin.Unit> origin=SUSPEND_CONVERSION
             FUN ADAPTER_FOR_SUSPEND_CONVERSION name:suspendConversion visibility:local modality:FINAL <> (p0:T of <root>.useSuspendExtT) returnType:kotlin.Unit [suspend]
               VALUE_PARAMETER ADAPTER_PARAMETER_FOR_SUSPEND_CONVERSION name:p0 index:0 type:T of <root>.useSuspendExtT
@@ -252,20 +252,20 @@ FILE fqName:<root> fileName:/suspendConversionOnArbitraryExpression.kt
     BLOCK_BODY
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
         TYPE_OP type=kotlin.coroutines.SuspendFunction0<kotlin.Unit> origin=CAST typeOperand=kotlin.coroutines.SuspendFunction0<kotlin.Unit>
-          GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.testSmartCastVsSuspendConversion' type=kotlin.Function0<kotlin.Unit> origin=null
+          GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.testSmartCastVsSuspendConversion' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
       CALL 'public final fun useSuspend (sfn: kotlin.coroutines.SuspendFunction0<kotlin.Unit>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
         sfn: TYPE_OP type=kotlin.coroutines.SuspendFunction0<kotlin.Unit> origin=IMPLICIT_CAST typeOperand=kotlin.coroutines.SuspendFunction0<kotlin.Unit>
-          GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.testSmartCastVsSuspendConversion' type=kotlin.Function0<kotlin.Unit> origin=null
+          GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.testSmartCastVsSuspendConversion' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:testSmartCastOnVarVsSuspendConversion 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
       VAR name:b type:kotlin.Function0<kotlin.Unit> [var]
-        GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.testSmartCastOnVarVsSuspendConversion' type=kotlin.Function0<kotlin.Unit> origin=null
+        GET_VAR 'a: kotlin.Function0<kotlin.Unit> declared in <root>.testSmartCastOnVarVsSuspendConversion' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
       TYPE_OP type=kotlin.Unit origin=IMPLICIT_COERCION_TO_UNIT typeOperand=kotlin.Unit
         TYPE_OP type=kotlin.coroutines.SuspendFunction0<kotlin.Unit> origin=CAST typeOperand=kotlin.coroutines.SuspendFunction0<kotlin.Unit>
-          GET_VAR 'var b: kotlin.Function0<kotlin.Unit> [var] declared in <root>.testSmartCastOnVarVsSuspendConversion' type=kotlin.Function0<kotlin.Unit> origin=null
+          GET_VAR 'var b: kotlin.Function0<kotlin.Unit> [var] declared in <root>.testSmartCastOnVarVsSuspendConversion' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
       CALL 'public final fun useSuspend (sfn: kotlin.coroutines.SuspendFunction0<kotlin.Unit>): kotlin.Unit declared in <root>' type=kotlin.Unit origin=null
-        sfn: GET_VAR 'var b: kotlin.Function0<kotlin.Unit> [var] declared in <root>.testSmartCastOnVarVsSuspendConversion' type=kotlin.Function0<kotlin.Unit> origin=null
+        sfn: GET_VAR 'var b: kotlin.Function0<kotlin.Unit> [var] declared in <root>.testSmartCastOnVarVsSuspendConversion' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:testIntersectionVsSuspendConversion visibility:public modality:FINAL <T> (x:T of <root>.testIntersectionVsSuspendConversion) returnType:kotlin.Unit
     TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Function0<kotlin.Unit>; kotlin.coroutines.SuspendFunction0<kotlin.Unit>]
     VALUE_PARAMETER name:x index:0 type:T of <root>.testIntersectionVsSuspendConversion

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

@@ -13,13 +13,13 @@ FILE fqName:<root> fileName:/variableAsFunctionCall.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test1 (f: kotlin.Function0<kotlin.Unit>): kotlin.Unit declared in <root>'
         CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=kotlin.Unit origin=INVOKE
-          $this: GET_VAR 'f: kotlin.Function0<kotlin.Unit> declared in <root>.test1' type=kotlin.Function0<kotlin.Unit> origin=null
+          $this: GET_VAR 'f: kotlin.Function0<kotlin.Unit> declared in <root>.test1' type=kotlin.Function0<kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:test2 visibility:public modality:FINAL <> (f:@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.Unit>) returnType:kotlin.Unit
     VALUE_PARAMETER name:f index:0 type:@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.Unit>
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun test2 (f: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.Unit>): kotlin.Unit declared in <root>'
         CALL 'public abstract fun invoke (p1: P1 of kotlin.Function1): R of kotlin.Function1 [operator] declared in kotlin.Function1' type=kotlin.Unit origin=INVOKE
-          $this: GET_VAR 'f: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.Unit> declared in <root>.test2' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.Unit> origin=null
+          $this: GET_VAR 'f: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.Unit> declared in <root>.test2' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.Function1<kotlin.String, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
           p1: CONST String type=kotlin.String value="hello"
   FUN name:test3 visibility:public modality:FINAL <> () returnType:kotlin.String
     BLOCK_BODY

compiler/testData/ir/irText/firProblems/BaseFirBuilder.fir.txt

@@ -13,7 +13,7 @@ FILE fqName:<root> fileName:/BaseFirBuilder.kt
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='public final fun withCapturedTypeParameters <T> (block: kotlin.Function0<T of <root>.BaseFirBuilder.withCapturedTypeParameters>): T of <root>.BaseFirBuilder.withCapturedTypeParameters [inline] declared in <root>.BaseFirBuilder'
           CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=T of <root>.BaseFirBuilder.withCapturedTypeParameters origin=INVOKE
-            $this: GET_VAR 'block: kotlin.Function0<T of <root>.BaseFirBuilder.withCapturedTypeParameters> declared in <root>.BaseFirBuilder.withCapturedTypeParameters' type=kotlin.Function0<T of <root>.BaseFirBuilder.withCapturedTypeParameters> origin=null
+            $this: GET_VAR 'block: kotlin.Function0<T of <root>.BaseFirBuilder.withCapturedTypeParameters> declared in <root>.BaseFirBuilder.withCapturedTypeParameters' type=kotlin.Function0<T of <root>.BaseFirBuilder.withCapturedTypeParameters> origin=VARIABLE_AS_FUNCTION
     FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($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

compiler/testData/ir/irText/firProblems/DeepCopyIrTree.fir.txt

@@ -225,7 +225,7 @@ FILE fqName:<root> fileName:/DeepCopyIrTree.kt
         irTypeParametersContainer: GET_VAR 'irTypeParametersContainer: <root>.IrTypeParametersContainer declared in <root>.withinScope' type=<root>.IrTypeParametersContainer origin=null
       VAR name:result type:T of <root>.withinScope [val]
         CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=T of <root>.withinScope origin=INVOKE
-          $this: GET_VAR 'fn: kotlin.Function0<T of <root>.withinScope> declared in <root>.withinScope' type=kotlin.Function0<T of <root>.withinScope> origin=null
+          $this: GET_VAR 'fn: kotlin.Function0<T of <root>.withinScope> declared in <root>.withinScope' type=kotlin.Function0<T of <root>.withinScope> origin=VARIABLE_AS_FUNCTION
       CALL 'public abstract fun leaveScope (): kotlin.Unit declared in <root>.TypeRemapper' type=kotlin.Unit origin=null
         $this: GET_VAR '<this>: <root>.TypeRemapper declared in <root>.withinScope' type=<root>.TypeRemapper origin=null
       RETURN type=kotlin.Nothing from='public final fun withinScope <T> (irTypeParametersContainer: <root>.IrTypeParametersContainer, fn: kotlin.Function0<T of <root>.withinScope>): T of <root>.withinScope [inline] declared in <root>'

compiler/testData/ir/irText/types/castsInsideCoroutineInference.fir.txt

@@ -23,7 +23,7 @@ FILE fqName:<root> fileName:/castsInsideCoroutineInference.kt
                       $receiver: VALUE_PARAMETER name:<this> type:<root>.CoroutineScope
                       BLOCK_BODY
                         CALL 'public abstract fun invoke (p1: P1 of kotlin.coroutines.SuspendFunction2, p2: P2 of kotlin.coroutines.SuspendFunction2): R of kotlin.coroutines.SuspendFunction2 [suspend,operator] declared in kotlin.coroutines.SuspendFunction2' type=kotlin.Unit origin=null
-                          $this: GET_VAR 'block: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction2<<root>.CoroutineScope, <root>.FlowCollector<R of <root>.scopedFlow>, kotlin.Unit> declared in <root>.scopedFlow' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction2<<root>.CoroutineScope, <root>.FlowCollector<R of <root>.scopedFlow>, kotlin.Unit> origin=null
+                          $this: GET_VAR 'block: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction2<<root>.CoroutineScope, <root>.FlowCollector<R of <root>.scopedFlow>, kotlin.Unit> declared in <root>.scopedFlow' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction2<<root>.CoroutineScope, <root>.FlowCollector<R of <root>.scopedFlow>, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
                           p1: GET_VAR '<this>: <root>.CoroutineScope declared in <root>.scopedFlow.<anonymous>.<anonymous>' type=<root>.CoroutineScope origin=null
                           p2: GET_VAR 'val collector: <root>.FlowCollector<IrErrorType> [val] declared in <root>.scopedFlow.<anonymous>' type=<root>.FlowCollector<IrErrorType> origin=null
   FUN name:onCompletion visibility:public modality:FINAL <T> ($receiver:<root>.Flow<T of <root>.onCompletion>, action:@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction2<<root>.FlowCollector<T of <root>.onCompletion>, kotlin.Throwable?, kotlin.Unit>) returnType:<root>.Flow<T of <root>.onCompletion>
@@ -45,7 +45,7 @@ FILE fqName:<root> fileName:/castsInsideCoroutineInference.kt
                 CALL 'public final fun invokeSafely <T> (action: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction2<<root>.FlowCollector<T of <root>.invokeSafely>, kotlin.Throwable?, kotlin.Unit>): kotlin.Unit [suspend] declared in <root>' type=kotlin.Unit origin=null
                   <T>: T of <root>.onCompletion
                   $receiver: GET_VAR 'val safeCollector: <root>.SafeCollector<IrErrorType> [val] declared in <root>.onCompletion.<anonymous>' type=<root>.SafeCollector<IrErrorType> origin=null
-                  action: GET_VAR 'action: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction2<<root>.FlowCollector<T of <root>.onCompletion>, kotlin.Throwable?, kotlin.Unit> declared in <root>.onCompletion' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction2<<root>.FlowCollector<T of <root>.onCompletion>, kotlin.Throwable?, kotlin.Unit> origin=null
+                  action: GET_VAR 'action: @[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction2<<root>.FlowCollector<T of <root>.onCompletion>, kotlin.Throwable?, kotlin.Unit> declared in <root>.onCompletion' type=@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction2<<root>.FlowCollector<T of <root>.onCompletion>, kotlin.Throwable?, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
   FUN name:invokeSafely visibility:public modality:FINAL <T> ($receiver:<root>.FlowCollector<T of <root>.invokeSafely>, action:@[ExtensionFunctionType] @[ExtensionFunctionType] kotlin.coroutines.SuspendFunction2<<root>.FlowCollector<T of <root>.invokeSafely>, kotlin.Throwable?, kotlin.Unit>) returnType:kotlin.Unit [suspend]
     TYPE_PARAMETER name:T index:0 variance: superTypes:[kotlin.Any?]
     $receiver: VALUE_PARAMETER name:<this> type:<root>.FlowCollector<T of <root>.invokeSafely>
@@ -74,7 +74,7 @@ FILE fqName:<root> fileName:/castsInsideCoroutineInference.kt
             FUN LOCAL_FUNCTION_FOR_LAMBDA name:<anonymous> visibility:local modality:FINAL <> () returnType:kotlin.Unit
               BLOCK_BODY
                 CALL 'public abstract fun invoke (p1: P1 of kotlin.coroutines.SuspendFunction1): R of kotlin.coroutines.SuspendFunction1 [suspend,operator] declared in kotlin.coroutines.SuspendFunction1' type=kotlin.Unit origin=null
-                  $this: GET_VAR 'action: kotlin.coroutines.SuspendFunction1<kotlin.Throwable?, kotlin.Unit> declared in <root>.onCompletion' type=kotlin.coroutines.SuspendFunction1<kotlin.Throwable?, kotlin.Unit> origin=null
+                  $this: GET_VAR 'action: kotlin.coroutines.SuspendFunction1<kotlin.Throwable?, kotlin.Unit> declared in <root>.onCompletion' type=kotlin.coroutines.SuspendFunction1<kotlin.Throwable?, kotlin.Unit> origin=VARIABLE_AS_FUNCTION
                   p1: ERROR_CALL 'Unresolved reference: <Unresolved name: it>#' type=IrErrorType
   FUN name:asFairChannel visibility:private modality:FINAL <> ($receiver:<root>.CoroutineScope, flow:<root>.Flow<*>) returnType:<root>.ReceiveChannel<kotlin.Any>
     $receiver: VALUE_PARAMETER name:<this> type:<root>.CoroutineScope

compiler/testData/ir/irText/types/intersectionType2_NI.fir.txt

@@ -74,7 +74,7 @@ FILE fqName:<root> fileName:/intersectionType2_NI.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun run <T> (fn: kotlin.Function0<T of <root>.run>): T of <root>.run declared in <root>'
         CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=T of <root>.run origin=INVOKE
-          $this: GET_VAR 'fn: kotlin.Function0<T of <root>.run> declared in <root>.run' type=kotlin.Function0<T of <root>.run> origin=null
+          $this: GET_VAR 'fn: kotlin.Function0<T of <root>.run> declared in <root>.run' type=kotlin.Function0<T of <root>.run> origin=VARIABLE_AS_FUNCTION
   FUN name:foo visibility:public modality:FINAL <> () returnType:kotlin.Any
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun foo (): kotlin.Any declared in <root>'

compiler/testData/ir/irText/types/intersectionType2_OI.fir.txt

@@ -74,7 +74,7 @@ FILE fqName:<root> fileName:/intersectionType2_OI.kt
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun run <T> (fn: kotlin.Function0<T of <root>.run>): T of <root>.run declared in <root>'
         CALL 'public abstract fun invoke (): R of kotlin.Function0 [operator] declared in kotlin.Function0' type=T of <root>.run origin=INVOKE
-          $this: GET_VAR 'fn: kotlin.Function0<T of <root>.run> declared in <root>.run' type=kotlin.Function0<T of <root>.run> origin=null
+          $this: GET_VAR 'fn: kotlin.Function0<T of <root>.run> declared in <root>.run' type=kotlin.Function0<T of <root>.run> origin=VARIABLE_AS_FUNCTION
   FUN name:foo visibility:public modality:FINAL <> () returnType:kotlin.Any
     BLOCK_BODY
       RETURN type=kotlin.Nothing from='public final fun foo (): kotlin.Any declared in <root>'