[FIR] Fix anonymous object handling as 'this' receiver

compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrVisitor.kt

@@ -24,7 +24,6 @@ import org.jetbrains.kotlin.fir.scopes.impl.FirIntegerOperator
 import org.jetbrains.kotlin.fir.symbols.StandardClassIds
 import org.jetbrains.kotlin.fir.symbols.impl.FirClassSymbol
 import org.jetbrains.kotlin.fir.symbols.impl.FirNamedFunctionSymbol
-import org.jetbrains.kotlin.fir.symbols.impl.FirRegularClassSymbol
 import org.jetbrains.kotlin.fir.types.ConeClassLikeType
 import org.jetbrains.kotlin.fir.types.FirTypeRef
 import org.jetbrains.kotlin.fir.visitors.FirDefaultVisitor
@@ -286,7 +285,7 @@ class Fir2IrVisitor(
 
     override fun visitThisReceiverExpression(thisReceiverExpression: FirThisReceiverExpression, data: Any?): IrElement {
         val calleeReference = thisReceiverExpression.calleeReference
-        if (calleeReference.labelName == null && calleeReference.boundSymbol is FirRegularClassSymbol) {
+        if (calleeReference.labelName == null && calleeReference.boundSymbol is FirClassSymbol) {
             // Object case
             val firObject = (calleeReference.boundSymbol?.fir as? FirClass)?.takeIf {
                 it is FirAnonymousObject || it is FirRegularClass && it.classKind == ClassKind.OBJECT

compiler/testData/codegen/box/classes/kt940.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // WITH_RUNTIME
 
 fun box() : String {

compiler/testData/codegen/box/classes/selfcreate.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 class B () {}
 
 open class A(val b : B) {

compiler/testData/codegen/box/closures/captureOuterProperty/captureFunctionInProperty.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 interface T {
     fun result(): String
 }

compiler/testData/codegen/box/closures/captureOuterProperty/inProperty.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 interface T {
     fun result(): String
 }

compiler/testData/codegen/box/closures/captureOuterProperty/inPropertyFromSuperClass.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 interface T {
     fun result(): String
 }

compiler/testData/codegen/box/enum/enumWithLambdaParameter.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 // KT-4423 Enum with function not compiled
 
 enum class Sign(val str: String, val func: (x: Int, y: Int) -> Int){

compiler/testData/codegen/box/enum/kt1119.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 enum class Direction() {
     NORTH {
         val someSpecialValue = "OK"

compiler/testData/codegen/box/enum/kt18731_2.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 
 enum class Bar {
     ONE {

compiler/testData/codegen/box/enum/kt2350.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 enum class A(val b: String) {
     E1("OK"){ override fun t() = b };
 

compiler/testData/codegen/box/enum/kt7257_anonObjectMethod.kt

@@ -1,3 +1,4 @@
+// IGNORE_BACKEND_FIR: JVM_IR
 enum class X {
     B {
         val value2 = "K"

compiler/testData/codegen/box/functions/kt1199.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 interface MyIterator<T> {
     operator fun hasNext() : Boolean
     operator fun next() : T

compiler/testData/codegen/box/objects/anonymousObjectPropertyInitialization.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 interface T {
     fun foo(): String
 }

compiler/testData/codegen/box/properties/classFieldInsideNested.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 abstract class Your {
     abstract val your: String
 

compiler/testData/codegen/box/properties/fieldInsideField.kt

@@ -1,4 +1,3 @@
-// IGNORE_BACKEND_FIR: JVM_IR
 abstract class Your {
     abstract val your: String
 

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

@@ -41,10 +41,10 @@ FILE fqName:<root> fileName:/enumEntryReferenceFromEnumEntryClass.kt
           $this: VALUE_PARAMETER name:<this> type:<root>.MyEnum.Z
           BLOCK_BODY
             CALL 'public final fun <set-counter> (<set-?>: kotlin.Int): kotlin.Unit declared in <root>.MyEnum.Z' type=kotlin.Unit origin=EQ
-              $this: GET_VAR '<this>: <root>.MyEnum.Z declared in <root>.MyEnum.Z' type=<root>.MyEnum.Z origin=null
+              $this: GET_VAR '<this>: <root>.MyEnum.Z declared in <root>.MyEnum.Z.bar' type=<root>.MyEnum.Z origin=null
               <set-?>: CONST Int type=kotlin.Int value=1
             CALL 'public final fun foo (): kotlin.Unit declared in <root>.MyEnum.Z' type=kotlin.Unit origin=null
-              $this: GET_VAR '<this>: <root>.MyEnum.Z declared in <root>.MyEnum.Z' type=<root>.MyEnum.Z origin=null
+              $this: GET_VAR '<this>: <root>.MyEnum.Z declared in <root>.MyEnum.Z.bar' type=<root>.MyEnum.Z origin=null
         PROPERTY name:aLambda visibility:public modality:FINAL [val]
           FIELD PROPERTY_BACKING_FIELD name:aLambda type:kotlin.Function0<kotlin.Unit> visibility:private [final]
             EXPRESSION_BODY
@@ -76,18 +76,18 @@ FILE fqName:<root> fileName:/enumEntryReferenceFromEnumEntryClass.kt
                   ANONYMOUS_INITIALIZER isStatic=false
                     BLOCK_BODY
                       CALL 'public final fun <set-counter> (<set-?>: kotlin.Int): kotlin.Unit declared in <root>.MyEnum.Z' type=kotlin.Unit origin=EQ
-                        $this: GET_VAR '<this>: <root>.MyEnum.Z declared in <root>.MyEnum.Z' type=<root>.MyEnum.Z origin=null
+                        $this: GET_OBJECT 'CLASS ENUM_ENTRY name:Z modality:FINAL visibility:private superTypes:[<root>.MyEnum]' type=<root>.MyEnum.Z
                         <set-?>: CONST Int type=kotlin.Int value=1
                       CALL 'public final fun foo (): kotlin.Unit declared in <root>.MyEnum.Z' type=kotlin.Unit origin=null
-                        $this: GET_VAR '<this>: <root>.MyEnum.Z declared in <root>.MyEnum.Z' type=<root>.MyEnum.Z origin=null
+                        $this: GET_OBJECT 'CLASS ENUM_ENTRY name:Z modality:FINAL visibility:private superTypes:[<root>.MyEnum]' type=<root>.MyEnum.Z
                   FUN name:test visibility:public modality:FINAL <> ($this:<root>.MyEnum.Z.anObject.<no name provided>) returnType:kotlin.Unit
                     $this: VALUE_PARAMETER name:<this> type:<root>.MyEnum.Z.anObject.<no name provided>
                     BLOCK_BODY
                       CALL 'public final fun <set-counter> (<set-?>: kotlin.Int): kotlin.Unit declared in <root>.MyEnum.Z' type=kotlin.Unit origin=EQ
-                        $this: GET_VAR '<this>: <root>.MyEnum.Z declared in <root>.MyEnum.Z' type=<root>.MyEnum.Z origin=null
+                        $this: GET_OBJECT 'CLASS ENUM_ENTRY name:Z modality:FINAL visibility:private superTypes:[<root>.MyEnum]' type=<root>.MyEnum.Z
                         <set-?>: CONST Int type=kotlin.Int value=1
                       CALL 'public final fun foo (): kotlin.Unit declared in <root>.MyEnum.Z' type=kotlin.Unit origin=null
-                        $this: GET_VAR '<this>: <root>.MyEnum.Z declared in <root>.MyEnum.Z' type=<root>.MyEnum.Z origin=null
+                        $this: GET_OBJECT 'CLASS ENUM_ENTRY name:Z modality:FINAL visibility:private superTypes:[<root>.MyEnum]' type=<root>.MyEnum.Z
                 CONSTRUCTOR_CALL 'private constructor <init> () [primary] declared in <root>.MyEnum.Z.anObject.<no name provided>' type=<root>.MyEnum.Z.anObject.<no name provided> origin=OBJECT_LITERAL
           FUN DEFAULT_PROPERTY_ACCESSOR name:<get-anObject> visibility:public modality:FINAL <> ($this:<root>.MyEnum.Z) returnType:<root>.MyEnum.Z.anObject.<no name provided>
             correspondingProperty: PROPERTY name:anObject visibility:public modality:FINAL [val]

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

@@ -86,7 +86,7 @@ FILE fqName:<root> fileName:/multipleThisReferences.kt
                   EXPRESSION_BODY
                     CALL 'public final fun plus (other: kotlin.Int): kotlin.Int [operator] declared in kotlin.Int' type=kotlin.Int origin=PLUS
                       $this: CALL 'public final fun <get-x> (): kotlin.Int declared in <root>.Outer.Inner' type=kotlin.Int origin=GET_PROPERTY
-                        $this: GET_VAR '<this>: <root>.Host.test.<no name provided> declared in <root>.Host.test.<no name provided>' type=<root>.Host.test.<no name provided> origin=null
+                        $this: GET_VAR '<this>: <root>.Host declared in <root>.Host.test' type=<root>.Host origin=null
                       other: CALL 'public final fun <get-y> (): kotlin.Int declared in <root>.Host' type=kotlin.Int origin=GET_PROPERTY
                         $this: GET_VAR '<this>: <root>.Host declared in <root>.Host.test' type=<root>.Host origin=null
                 FUN DEFAULT_PROPERTY_ACCESSOR name:<get-xx> visibility:public modality:FINAL <> ($this:<root>.Host.test.<no name provided>) returnType:kotlin.Int

compiler/testData/ir/irText/singletons/enumEntry.fir.txt

@@ -29,7 +29,7 @@ FILE fqName:<root> fileName:/enumEntry.kt
             $this: VALUE_PARAMETER name:<this> type:<root>.Z.ENTRY.A
             BLOCK_BODY
               CALL 'public final fun test (): kotlin.Unit declared in <root>.Z.ENTRY' type=kotlin.Unit origin=null
-                $this: GET_VAR '<this>: <root>.Z.ENTRY declared in <root>.Z.ENTRY' type=<root>.Z.ENTRY origin=null
+                $this: GET_OBJECT 'CLASS ENUM_ENTRY name:ENTRY modality:FINAL visibility:private superTypes:[<root>.Z]' type=<root>.Z.ENTRY
           FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($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/types/genericDelegatedDeepProperty.fir.txt

@@ -304,10 +304,10 @@ FILE fqName:<root> fileName:/genericDelegatedDeepProperty.kt
                     <class: P1>: T of <root>.<get-additionalText>
                     <class: P2>: T of <root>.<get-additionalText>
                     p1: CALL 'public final fun <get-deepO> (): T of <root>.<get-additionalText> declared in <root>.additionalText$delegate.<no name provided>' type=T of <root>.<get-additionalText> origin=GET_PROPERTY
-                      $this: GET_VAR '<this>: <root>.additionalText$delegate.<no name provided> declared in <root>.additionalText$delegate.<no name provided>' type=<root>.additionalText$delegate.<no name provided> origin=null
+                      $this: GET_VAR '<this>: <root>.additionalText$delegate.<no name provided> declared in <root>.additionalText$delegate.<no name provided>.getValue' type=<root>.additionalText$delegate.<no name provided> origin=null
                       $receiver: GET_VAR 't: <root>.Value<T of <root>.<get-additionalText>, <root>.CR<T of <root>.<get-additionalText>>> declared in <root>.additionalText$delegate.<no name provided>.getValue' type=<root>.Value<T of <root>.<get-additionalText>, <root>.CR<T of <root>.<get-additionalText>>> origin=null
                     p2: CALL 'public final fun <get-deepK> (): T of <root>.<get-additionalText> declared in <root>.additionalText$delegate.<no name provided>' type=T of <root>.<get-additionalText> origin=GET_PROPERTY
-                      $this: GET_VAR '<this>: <root>.additionalText$delegate.<no name provided> declared in <root>.additionalText$delegate.<no name provided>' type=<root>.additionalText$delegate.<no name provided> origin=null
+                      $this: GET_VAR '<this>: <root>.additionalText$delegate.<no name provided> declared in <root>.additionalText$delegate.<no name provided>.getValue' type=<root>.additionalText$delegate.<no name provided> origin=null
                       $receiver: GET_VAR 't: <root>.Value<T of <root>.<get-additionalText>, <root>.CR<T of <root>.<get-additionalText>>> declared in <root>.additionalText$delegate.<no name provided>.getValue' type=<root>.Value<T of <root>.<get-additionalText>, <root>.CR<T of <root>.<get-additionalText>>> origin=null
           CONSTRUCTOR_CALL 'private constructor <init> () [primary] declared in <root>.additionalText$delegate.<no name provided>' type=<root>.additionalText$delegate.<no name provided> origin=OBJECT_LITERAL
     FUN DELEGATED_PROPERTY_ACCESSOR name:<get-additionalText> visibility:public modality:FINAL <T> ($receiver:<root>.Value<T of <root>.<get-additionalText>, <root>.CR<T of <root>.<get-additionalText>>>) returnType:<root>.P<T of <root>.<get-additionalText>, T of <root>.<get-additionalText>>