FIR2IR: add test for KT-57221

compiler/testData/ir/irText/firProblems/AnonymousAsReturnOfGenericFunction.ir.txt

@@ -0,0 +1,46 @@
+FILE fqName:<root> fileName:/AnonymousAsReturnOfGenericFunction.kt
+  CLASS INTERFACE name:NestedGroupFragment modality:ABSTRACT visibility:public superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.NestedGroupFragment
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($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:addMavenOptionsGroupFragment visibility:private modality:FINAL <> () returnType:<root>.addOptionsGroup.<no name provided><kotlin.Int>
+    BLOCK_BODY
+      RETURN type=kotlin.Nothing from='private final fun addMavenOptionsGroupFragment (): <root>.addOptionsGroup.<no name provided><kotlin.Int> declared in <root>'
+        CALL 'private final fun addOptionsGroup <S> (): <root>.addOptionsGroup.<no name provided><S of <root>.addOptionsGroup> declared in <root>' type=<root>.addOptionsGroup.<no name provided><kotlin.Int> origin=null
+          <S>: kotlin.Int
+  FUN name:addOptionsGroup visibility:private modality:FINAL <S> () returnType:<root>.addOptionsGroup.<no name provided><S of <root>.addOptionsGroup>
+    TYPE_PARAMETER name:S index:0 variance: superTypes:[kotlin.Any?] reified:false
+    BLOCK_BODY
+      RETURN type=kotlin.Nothing from='private final fun addOptionsGroup <S> (): <root>.addOptionsGroup.<no name provided><S of <root>.addOptionsGroup> declared in <root>'
+        BLOCK type=<root>.addOptionsGroup.<no name provided><S of <root>.addOptionsGroup> origin=OBJECT_LITERAL
+          CLASS CLASS name:<no name provided> modality:FINAL visibility:local superTypes:[<root>.NestedGroupFragment]
+            $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.addOptionsGroup.<no name provided><S of <root>.addOptionsGroup>
+            CONSTRUCTOR visibility:public <> () returnType:<root>.addOptionsGroup.<no name provided><S of <root>.addOptionsGroup> [primary]
+              BLOCK_BODY
+                DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+                INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:<no name provided> modality:FINAL visibility:local superTypes:[<root>.NestedGroupFragment]'
+            FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+              overridden:
+                public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in <root>.NestedGroupFragment
+              $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+              VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+            FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+              overridden:
+                public open fun hashCode (): kotlin.Int [fake_override] declared in <root>.NestedGroupFragment
+              $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+            FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+              overridden:
+                public open fun toString (): kotlin.String [fake_override] declared in <root>.NestedGroupFragment
+              $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+          CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.addOptionsGroup.<no name provided>' type=<root>.addOptionsGroup.<no name provided><S of <root>.addOptionsGroup> origin=OBJECT_LITERAL

compiler/testData/ir/irText/firProblems/AnonymousAsReturnOfGenericFunction.kt

@@ -0,0 +1,5 @@
+interface NestedGroupFragment
+
+private fun addMavenOptionsGroupFragment() = addOptionsGroup<Int>()
+
+private fun <S> addOptionsGroup() = object: NestedGroupFragment {}

compiler/testData/ir/irText/firProblems/AnonymousAsReturnOfGenericFunction.kt.txt

@@ -0,0 +1,22 @@
+interface NestedGroupFragment {
+
+}
+
+private fun addMavenOptionsGroupFragment(): <no name provided><Int> {
+  return addOptionsGroup<Int>()
+}
+
+private fun <S : Any?> addOptionsGroup(): <no name provided><S> {
+  return { // BLOCK
+    local class <no name provided> : NestedGroupFragment {
+      constructor() /* primary */ {
+        super/*Any*/()
+        /* <init>() */
+
+      }
+
+    }
+
+    <no name provided>()
+  }
+}