FIR Java: record Java types with flexible nullability

compiler/fir/analysis-tests/testData/resolveWithStdlib/inference/flexibleTypeInSystem.txt

@@ -1,3 +1,3 @@
 FILE: main.kt
-    public final val enumMap: R|java/util/EnumMap<ft<JavaEnum, JavaEnum?>!, ft<kotlin/String, kotlin/String?>!>| = R|java/util/EnumMap.EnumMap|<R|ft<JavaEnum, JavaEnum?>!|, R|ft<kotlin/String, kotlin/String?>!|>(R|kotlin/collections/mapOf|<R|ft<JavaEnum, JavaEnum?>!|, R|kotlin/String|>(Q|JavaEnum|.R|/JavaEnum.A|.R|kotlin/to|<R|JavaEnum|, R|kotlin/String|>(String(A))))
-        public get(): R|java/util/EnumMap<ft<JavaEnum, JavaEnum?>!, ft<kotlin/String, kotlin/String?>!>|
+    public final val enumMap: R|java/util/EnumMap<ft<@FlexibleNullability JavaEnum, JavaEnum?>!, ft<kotlin/String, kotlin/String?>!>| = R|java/util/EnumMap.EnumMap|<R|ft<@FlexibleNullability JavaEnum, JavaEnum?>!|, R|ft<kotlin/String, kotlin/String?>!|>(R|kotlin/collections/mapOf|<R|ft<@FlexibleNullability JavaEnum, JavaEnum?>!|, R|kotlin/String|>(Q|JavaEnum|.R|/JavaEnum.A|.R|kotlin/to|<R|@FlexibleNullability JavaEnum|, R|kotlin/String|>(String(A))))
+        public get(): R|java/util/EnumMap<ft<@FlexibleNullability JavaEnum, JavaEnum?>!, ft<kotlin/String, kotlin/String?>!>|

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/BasicWithAnnotatedOverriddenJava.txt

@@ -5,8 +5,8 @@ FILE: jvm.kt
         }
 
         public final fun test(): R|kotlin/Unit| {
-            lval x: R|kotlin/String| = this@R|/User|.R|/AnnotatedDerived.foo|(String(123))
-            lval y: R|kotlin/String| = this@R|/User|.R|/AnnotatedDerived.foo|(Null(null))
+            lval x: R|@FlexibleNullability kotlin/String| = this@R|/User|.R|/AnnotatedDerived.foo|(String(123))
+            lval y: R|@FlexibleNullability kotlin/String| = this@R|/User|.R|/AnnotatedDerived.foo|(Null(null))
         }
 
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/BasicWithPrimitiveJava.txt

@@ -7,7 +7,7 @@ FILE: jvm.kt
         public final fun test(): R|kotlin/Unit| {
             lval res1: R|kotlin/Boolean| = this@R|/A|.R|/Some.foo|(Int(1))
             lval res2: R|kotlin/Boolean| = this@R|/A|.R|/Some.foo|(Int(-1))
-            lval res3: R|ft<kotlin/Array<ft<kotlin/String, kotlin/String?>!>, kotlin/Array<out ft<kotlin/String, kotlin/String?>!>?>!| = this@R|/A|.R|/Some.bar|(R|kotlin/intArrayOf|(vararg(Int(0), Int(2), Int(-2))))
+            lval res3: R|ft<@FlexibleNullability kotlin/Array<ft<@FlexibleNullability kotlin/String, kotlin/String?>!>, kotlin/Array<out ft<@FlexibleNullability kotlin/String, kotlin/String?>!>?>!| = this@R|/A|.R|/Some.bar|(R|kotlin/intArrayOf|(vararg(Int(0), Int(2), Int(-2))))
         }
 
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/FunctionTypeInJava.txt

@@ -1,14 +1,14 @@
 FILE: main.kt
     public final fun main(): R|kotlin/Unit| {
-        Q|JavaClass|.R|/JavaClass.foo1|(<L> = foo1@fun <anonymous>(): R|ft<kotlin/Int, kotlin/Int?>!| {
+        Q|JavaClass|.R|/JavaClass.foo1|(<L> = foo1@fun <anonymous>(): R|ft<@FlexibleNullability kotlin/Int, kotlin/Int?>!| {
             ^ Int(123)
         }
         )
-        Q|JavaClass|.R|/JavaClass.foo2|(<L> = foo2@fun <anonymous>(it: R|ft<kotlin/Int, kotlin/Int?>!|): R|ft<kotlin/String, kotlin/String?>!| {
+        Q|JavaClass|.R|/JavaClass.foo2|(<L> = foo2@fun <anonymous>(it: R|ft<@FlexibleNullability kotlin/Int, kotlin/Int?>!|): R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| {
             ^ R|<local>/it|.R|kotlin/Int.plus|(Int(2)).R|kotlin/Any.toString|()
         }
         )
-        Q|JavaClass|.R|/JavaClass.foo2|(foo2@fun <anonymous>(it: R|ft<kotlin/Int, kotlin/Int?>!|): R|ft<kotlin/String, kotlin/String?>!| {
+        Q|JavaClass|.R|/JavaClass.foo2|(foo2@fun <anonymous>(it: R|ft<@FlexibleNullability kotlin/Int, kotlin/Int?>!|): R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| {
             ^ R|<local>/it|.R|kotlin/Int.plus|(Int(3)).R|kotlin/Any.toString|()
         }
         )
@@ -17,7 +17,7 @@ FILE: main.kt
         }
 
         Q|JavaClass|.R|/JavaClass.foo2|(R|<local>/y|)
-        Q|JavaClass|.R|/JavaClass.foo3|<R|ft<kotlin/Int, kotlin/Int?>!|>(foo3@fun <anonymous>(it: R|ft<kotlin/Int, kotlin/Int?>!|): R|ft<kotlin/String, kotlin/String?>!| {
+        Q|JavaClass|.R|/JavaClass.foo3|<R|ft<kotlin/Int, kotlin/Int?>!|>(foo3@fun <anonymous>(it: R|ft<kotlin/Int, kotlin/Int?>!|): R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| {
             ^ R|<local>/it|.R|kotlin/Int.plus|(Int(4)).R|kotlin/Any.toString|()
         }
         , Int(5))

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/JavaGetPrefixConflict.txt

@@ -1,8 +1,8 @@
 FILE: Test.kt
     public final fun test(): R|kotlin/Unit| {
         lval jc: R|JavaClass| = R|/JavaClass.JavaClass|()
-        lval result: R|ft<kotlin/String, kotlin/String?>!| = R|<local>/jc|.R|/JavaClass.text|
+        lval result: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|<local>/jc|.R|/JavaClass.text|
     }
     public final fun otherTest(jc: R|JavaClass|): R|kotlin/Unit| {
-        lval result: R|ft<kotlin/String, kotlin/String?>!| = R|<local>/jc|.R|/JavaClass.text|
+        lval result: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|<local>/jc|.R|/JavaClass.text|
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/JavaSyntheticProperty.txt

@@ -1,3 +1,3 @@
 FILE: test.kt
-    public final val x: R|ft<kotlin/String, kotlin/String?>!| = R|/JavaClass.JavaClass|().R|/JavaClass.foo|
-        public get(): R|ft<kotlin/String, kotlin/String?>!|
+    public final val x: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|/JavaClass.JavaClass|().R|/JavaClass.foo|
+        public get(): R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/KJKInheritanceGeneric.txt

@@ -16,7 +16,7 @@ FILE: K2.kt
         }
 
         public final fun bar(): R|kotlin/Unit| {
-            this@R|/K2|.R|SubstitutionOverride</J1.foo: R|ft<kotlin/Int, kotlin/Int?>!|>|(Int(1))
+            this@R|/K2|.R|SubstitutionOverride</J1.foo: R|ft<@FlexibleNullability kotlin/Int, kotlin/Int?>!|>|(Int(1))
             this@R|/K2|.R|/J1.baz|()
         }
 

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/KotlinClassParameterGeneric.txt

@@ -7,7 +7,7 @@ FILE: K1.kt
     }
 FILE: K2.kt
     public final fun main(): R|kotlin/Unit| {
-        Q|JavaClass|.R|/JavaClass.baz|(R|/KotlinClass.KotlinClass|<R|ft<kotlin/Int, kotlin/Int?>!|>())
+        Q|JavaClass|.R|/JavaClass.baz|(R|/KotlinClass.KotlinClass|<R|ft<@FlexibleNullability kotlin/Int, kotlin/Int?>!|>())
         Q|JavaClass|.R|/JavaClass.baz|(R|/KotlinClass.KotlinClass|<R|kotlin/Int|>())
         Q|JavaClass|.<Inapplicable(INAPPLICABLE): /JavaClass.baz>#(R|/KotlinClass.KotlinClass|<R|kotlin/String|>())
         Q|JavaClass|.<Inapplicable(INAPPLICABLE): /JavaClass.baz>#(String())

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/LoggerInstance.txt

@@ -1,6 +1,6 @@
 FILE: test.kt
     public final fun test(): R|kotlin/Unit| {
-        lval logger: R|ft<Logger, Logger?>!| = Q|Logger|.R|/Logger.getInstance|(String(test))
+        lval logger: R|ft<@FlexibleNullability Logger, Logger?>!| = Q|Logger|.R|/Logger.getInstance|(String(test))
     }
     public final class MyTest : R|kotlin/Any| {
         public constructor(): R|MyTest| {
@@ -10,7 +10,7 @@ FILE: test.kt
         private final val klass: R|java/lang/Class<MyTest>| = <getClass>(this@R|/MyTest|).R|kotlin/jvm/java|<R|MyTest|>
             private get(): R|java/lang/Class<MyTest>|
 
-        private final val logger: R|ft<Logger, Logger?>!| = Q|Logger|.R|/Logger.getInstance|(this@R|/MyTest|.R|/MyTest.klass|)
-            private get(): R|ft<Logger, Logger?>!|
+        private final val logger: R|ft<@FlexibleNullability Logger, Logger?>!| = Q|Logger|.R|/Logger.getInstance|(this@R|/MyTest|.R|/MyTest.klass|)
+            private get(): R|ft<@FlexibleNullability Logger, Logger?>!|
 
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/MapEntry.txt

@@ -7,7 +7,7 @@ FILE: main.kt
     }
     public final fun test(): R|kotlin/Unit| {
         lval b: R|MyMapEntry| = R|/MyMapEntry.MyMapEntry|()
-        lval key: R|ft<kotlin/String, kotlin/String?>!| = R|<local>/b|.R|/Test.MapEntryImpl.key|
-        lval value: R|ft<kotlin/String, kotlin/String?>!| = R|<local>/b|.R|/Test.MapEntryImpl.value|
+        lval key: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|<local>/b|.R|/Test.MapEntryImpl.key|
+        lval value: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|<local>/b|.R|/Test.MapEntryImpl.value|
         R|<local>/b|.R|/Test.MapEntryImpl.setValue|(Null(null))
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/MyException.txt

@@ -8,15 +8,15 @@ FILE: test.kt
     public final fun test(e: R|MyException|, stream: R|java/io/PrintStream|): R|kotlin/Unit| {
         R|<local>/e|.R|java/lang/Throwable.printStackTrace|()
         R|<local>/e|.R|java/lang/Throwable.printStackTrace|(R|<local>/stream|)
-        lval result: R|ft<kotlin/String, kotlin/String?>!| = R|<local>/e|.R|java/lang/Throwable.getLocalizedMessage|()
+        lval result: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|<local>/e|.R|java/lang/Throwable.getLocalizedMessage|()
     }
     public final fun test(e: R|YourException|, stream: R|java/io/PrintStream|): R|kotlin/Unit| {
         R|<local>/e|.R|java/lang/Throwable.printStackTrace|()
         R|<local>/e|.R|java/lang/Throwable.printStackTrace|(R|<local>/stream|)
-        lval result: R|ft<kotlin/String, kotlin/String?>!| = R|<local>/e|.R|java/lang/Throwable.getLocalizedMessage|()
+        lval result: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|<local>/e|.R|java/lang/Throwable.getLocalizedMessage|()
     }
     public final fun test(e: R|kotlin/Exception|, stream: R|java/io/PrintStream|): R|kotlin/Unit| {
         R|<local>/e|.R|java/lang/Throwable.printStackTrace|()
         R|<local>/e|.R|java/lang/Throwable.printStackTrace|(R|<local>/stream|)
-        lval result: R|ft<kotlin/String, kotlin/String?>!| = R|<local>/e|.R|java/lang/Throwable.getLocalizedMessage|()
+        lval result: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|<local>/e|.R|java/lang/Throwable.getLocalizedMessage|()
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/MyIterable.txt

@@ -2,11 +2,11 @@ FILE: test.kt
     public abstract interface UseIterable : R|MyIterable<kotlin/String>| {
         public open fun test(): R|kotlin/Unit| {
             lval it: R|kotlin/collections/MutableIterator<ft<kotlin/String, kotlin/String?>!>| = this@R|/UseIterable|.R|SubstitutionOverride</UseIterable.iterator: R|kotlin/collections/MutableIterator<ft<kotlin/String, kotlin/String?>!>|>|()
-            lval split: R|java/util/Spliterator<ft<kotlin/String, kotlin/String?>!>| = this@R|/UseIterable|.R|SubstitutionOverride</UseIterable.spliterator: R|java/util/Spliterator<ft<kotlin/String, kotlin/String?>!>|>|()
+            lval split: R|@FlexibleNullability java/util/Spliterator<ft<kotlin/String, kotlin/String?>!>| = this@R|/UseIterable|.R|SubstitutionOverride</UseIterable.spliterator: R|@FlexibleNullability java/util/Spliterator<ft<kotlin/String, kotlin/String?>!>|>|()
         }
 
     }
     public final fun test(some: R|kotlin/collections/Iterable<kotlin/String>|): R|kotlin/Unit| {
         lval it: R|kotlin/collections/Iterator<kotlin/String>| = R|<local>/some|.R|SubstitutionOverride<kotlin/collections/Iterable.iterator: R|kotlin/collections/Iterator<kotlin/String>|>|()
-        lval split: R|java/util/Spliterator<ft<kotlin/String, kotlin/String?>!>| = R|<local>/some|.R|SubstitutionOverride<kotlin/collections/Iterable.spliterator: R|java/util/Spliterator<ft<kotlin/String, kotlin/String?>!>|>|()
+        lval split: R|@FlexibleNullability java/util/Spliterator<ft<kotlin/String, kotlin/String?>!>| = R|<local>/some|.R|SubstitutionOverride<kotlin/collections/Iterable.spliterator: R|@FlexibleNullability java/util/Spliterator<ft<kotlin/String, kotlin/String?>!>|>|()
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/MyMap.txt

@@ -1,20 +1,20 @@
 FILE: test.kt
     public final fun test(map: R|MyMap|): R|kotlin/Unit| {
-        lval result: R|ft<kotlin/String, kotlin/String?>!| = R|<local>/map|.R|kotlin/collections/getOrPut|<R|ft<kotlin/String, kotlin/String?>!|, R|ft<kotlin/String, kotlin/String?>!|>(String(key), <L> = getOrPut@fun <anonymous>(): R|kotlin/String| <kind=UNKNOWN>  {
+        lval result: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|<local>/map|.R|kotlin/collections/getOrPut|<R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|, R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|>(String(key), <L> = getOrPut@fun <anonymous>(): R|kotlin/String| <kind=UNKNOWN>  {
             ^ String(value)
         }
         )
-        lval otherResult: R|ft<kotlin/String, kotlin/String?>!| = R|<local>/map|.R|SubstitutionOverride</MyMap.getOrDefault: R|ft<kotlin/String, kotlin/String?>!|>|(String(key), String(value))
-        lval anotherResult: R|kotlin/String?| = R|<local>/map|.R|SubstitutionOverride</MyMap.replace: R|kotlin/String?|>|(String(key), String(value))
-        R|<local>/map|.R|SubstitutionOverride</MyMap.forEach: R|kotlin/Unit|>|(<L> = forEach@fun <anonymous>(key: R|ft<kotlin/String, kotlin/String?>!|, value: R|ft<kotlin/String, kotlin/String?>!|): R|kotlin/Unit| {
+        lval otherResult: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|<local>/map|.R|SubstitutionOverride</MyMap.getOrDefault: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|>|(String(key), String(value))
+        lval anotherResult: R|@FlexibleNullability kotlin/String?| = R|<local>/map|.R|SubstitutionOverride</MyMap.replace: R|@FlexibleNullability kotlin/String?|>|(String(key), String(value))
+        R|<local>/map|.R|SubstitutionOverride</MyMap.forEach: R|kotlin/Unit|>|(<L> = forEach@fun <anonymous>(key: R|ft<@FlexibleNullability kotlin/String, @FlexibleNullability kotlin/String?>!|, value: R|ft<@FlexibleNullability kotlin/String, @FlexibleNullability kotlin/String?>!|): R|kotlin/Unit| {
             R|kotlin/io/println|(<strcat>(R|<local>/key|.R|kotlin/Any.toString|(), String(: ), R|<local>/value|.R|kotlin/Any.toString|()))
             R|<local>/key|.R|kotlin/String.length|
             R|<local>/value|.R|kotlin/String.length|
         }
         )
-        R|<local>/map|.R|kotlin/collections/forEach|<R|ft<kotlin/String, kotlin/String?>!|, R|ft<kotlin/String, kotlin/String?>!|>(<L> = forEach@fun <anonymous>(<destruct>: R|kotlin/collections/Map.Entry<ft<kotlin/String, kotlin/String?>!, ft<kotlin/String, kotlin/String?>!>|): R|kotlin/Unit| <kind=UNKNOWN>  {
-            lval key: R|ft<kotlin/String, kotlin/String?>!| = R|<local>/<destruct>|.R|kotlin/collections/component1|<R|ft<kotlin/String, kotlin/String?>!|, R|ft<kotlin/String, kotlin/String?>!|>()
-            lval value: R|ft<kotlin/String, kotlin/String?>!| = R|<local>/<destruct>|.R|kotlin/collections/component2|<R|ft<kotlin/String, kotlin/String?>!|, R|ft<kotlin/String, kotlin/String?>!|>()
+        R|<local>/map|.R|kotlin/collections/forEach|<R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|, R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|>(<L> = forEach@fun <anonymous>(<destruct>: R|kotlin/collections/Map.Entry<ft<@FlexibleNullability kotlin/String, kotlin/String?>!, ft<@FlexibleNullability kotlin/String, kotlin/String?>!>|): R|kotlin/Unit| <kind=UNKNOWN>  {
+            lval key: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|<local>/<destruct>|.R|kotlin/collections/component1|<R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|, R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|>()
+            lval value: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|<local>/<destruct>|.R|kotlin/collections/component2|<R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|, R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|>()
             R|kotlin/io/println|(<strcat>(R|<local>/key|.R|kotlin/Any.toString|(), String(: ), R|<local>/value|.R|kotlin/Any.toString|()))
             R|<local>/key|.R|kotlin/String.length|
             R|<local>/value|.R|kotlin/String.length|

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/StaticFromBaseClass.txt

@@ -1,5 +1,5 @@
 FILE: main.kt
     public final fun test(): R|kotlin/Unit| {
-        lval project: R|ft<kotlin/String, kotlin/String?>!| = Q|PlatformDataKeys|.R|/CommonDataKeys.PROJECT|
-        lval member: R|ft<kotlin/String, kotlin/String?>!| = R|/PlatformDataKeys.PlatformDataKeys|().R|/CommonDataKeys.MEMBER|
+        lval project: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = Q|PlatformDataKeys|.R|/CommonDataKeys.PROJECT|
+        lval member: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!| = R|/PlatformDataKeys.PlatformDataKeys|().R|/CommonDataKeys.MEMBER|
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/SyntheticWithForEach.txt

@@ -1,13 +1,13 @@
 FILE: test.kt
     public final fun <D : R|kotlin/Any|> R|Call<D>|.testForEach(): R|kotlin/Unit| {
-        this@R|/testForEach|.R|/Call.arguments|.R|SubstitutionOverride<kotlin/collections/MutableMap.forEach: R|kotlin/Unit|>|(<L> = forEach@fun <anonymous>(key: R|ft<kotlin/String, kotlin/String?>!|, value: R|ft<kotlin/String, kotlin/String?>!|): R|kotlin/Unit| {
+        this@R|/testForEach|.R|/Call.arguments|.R|SubstitutionOverride<kotlin/collections/MutableMap.forEach: R|kotlin/Unit|>|(<L> = forEach@fun <anonymous>(key: R|ft<@FlexibleNullability kotlin/String, @FlexibleNullability kotlin/String?>!|, value: R|ft<@FlexibleNullability kotlin/String, @FlexibleNullability kotlin/String?>!|): R|kotlin/Unit| {
             R|<local>/key|.R|kotlin/String.length|
             R|<local>/value|.R|kotlin/String.length|
         }
         )
-        this@R|/testForEach|.R|/Call.arguments|.R|kotlin/collections/forEach|<R|ft<kotlin/String, kotlin/String?>!|, R|ft<kotlin/String, kotlin/String?>!|>(<L> = forEach@fun <anonymous>(it: R|kotlin/collections/Map.Entry<ft<kotlin/String, kotlin/String?>!, ft<kotlin/String, kotlin/String?>!>|): R|kotlin/Unit| <kind=UNKNOWN>  {
-            R|<local>/it|.R|SubstitutionOverride<kotlin/collections/Map.Entry.key: R|ft<kotlin/String, kotlin/String?>!|>|.R|kotlin/String.length|
-            R|<local>/it|.R|SubstitutionOverride<kotlin/collections/Map.Entry.value: R|ft<kotlin/String, kotlin/String?>!|>|.R|kotlin/String.length|
+        this@R|/testForEach|.R|/Call.arguments|.R|kotlin/collections/forEach|<R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|, R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|>(<L> = forEach@fun <anonymous>(it: R|kotlin/collections/Map.Entry<ft<@FlexibleNullability kotlin/String, kotlin/String?>!, ft<@FlexibleNullability kotlin/String, kotlin/String?>!>|): R|kotlin/Unit| <kind=UNKNOWN>  {
+            R|<local>/it|.R|SubstitutionOverride<kotlin/collections/Map.Entry.key: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|>|.R|kotlin/String.length|
+            R|<local>/it|.R|SubstitutionOverride<kotlin/collections/Map.Entry.value: R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|>|.R|kotlin/String.length|
         }
         )
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/capturedFlexible.txt

@@ -1,4 +1,4 @@
 FILE: capturedFlexible.kt
     public final fun foo(z: R|java/util/zip/ZipFile|): R|kotlin/Unit| {
-        R|<local>/z|.R|java/util/zip/ZipFile.entries|().R|kotlin/sequences/asSequence|<R|ft<java/util/zip/ZipEntry, java/util/zip/ZipEntry?>!|>()
+        R|<local>/z|.R|java/util/zip/ZipFile.entries|().R|kotlin/sequences/asSequence|<R|ft<@FlexibleNullability java/util/zip/ZipEntry, java/util/zip/ZipEntry?>!|>()
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/complexFlexibleInference.txt

@@ -1,4 +1,4 @@
 FILE: main.kt
     public final fun bar(bindingContext: R|BindingContext|): R|kotlin/Unit| {
-        R|<local>/bindingContext|.R|/BindingContext.get|<R|ft<kotlin/String, kotlin/String?>!|, R|ft<kotlin/Double, kotlin/Double?>!|>(Q|Slices|.R|/Slices.X|, R|<local>/bindingContext|.R|/BindingContext.get|<R|ft<kotlin/Int, kotlin/Int?>!|, R|ft<kotlin/String, kotlin/String?>!|>(Q|Slices|.R|/Slices.Y|, Int(1)))
+        R|<local>/bindingContext|.R|/BindingContext.get|<R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|, R|ft<@FlexibleNullability kotlin/Double, kotlin/Double?>!|>(Q|Slices|.R|/Slices.X|, R|<local>/bindingContext|.R|/BindingContext.get|<R|ft<@FlexibleNullability kotlin/Int, kotlin/Int?>!|, R|ft<@FlexibleNullability kotlin/String, kotlin/String?>!|>(Q|Slices|.R|/Slices.Y|, Int(1)))
     }

compiler/fir/analysis-tests/testData/resolveWithStdlib/j+k/flexibleTypeAliases.txt

@@ -4,5 +4,5 @@ FILE: main.kt
     public final typealias ImmutableLinkedHashSet<E> = R|imm/LinkedHashSet<E>|
     private final typealias ImmutableMultimap<K, V> = R|ImmutableMap<K, ImmutableSet<V>>|
     private final fun <K, V> R|ImmutableMultimap<K, V>|.put(key: R|K|, value: R|V|): R|kotlin/Unit| {
-        this@R|/put|.R|SubstitutionOverride<imm/Map.get: R|ft<imm/Option<ft<ImmutableSet<V>, ImmutableSet<V>?>!>, imm/Option<ft<ImmutableSet<V>, ImmutableSet<V>?>!>?>!|>|(R|<local>/key|).R|SubstitutionOverride<imm/Option.getOrElse: R|ft<ImmutableSet<V>, ImmutableSet<V>?>!|>|(Q|ImmutableLinkedHashSet|.R|imm/LinkedHashSet.empty|<R|ft<V, V?>!|>())
+        this@R|/put|.R|SubstitutionOverride<imm/Map.get: R|ft<@FlexibleNullability imm/Option<ft<ImmutableSet<V>, ImmutableSet<V>?>!>, imm/Option<ft<ImmutableSet<V>, ImmutableSet<V>?>!>?>!|>|(R|<local>/key|).R|SubstitutionOverride<imm/Option.getOrElse: R|ft<ImmutableSet<V>, ImmutableSet<V>?>!|>|(Q|ImmutableLinkedHashSet|.R|imm/LinkedHashSet.empty|<R|ft<V, V?>!|>())
     }