Introduce IrGetValue as a replacement for IrThisReference / IrGetExtensionReceiver / IrGetVariable.

compiler/testData/ir/irText/classes/argumentReorderingInDelegatingConstructorCall.txt

@@ -12,7 +12,7 @@ FILE /argumentReorderingInDelegatingConstructorCall.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Base' type=Base
+              receiver: GET_VAR '<receiver: Base>' type=Base origin=null
     PROPERTY public final val y: kotlin.Int
       FIELD PROPERTY_BACKING_FIELD public final val y: kotlin.Int
         EXPRESSION_BODY
@@ -21,7 +21,7 @@ FILE /argumentReorderingInDelegatingConstructorCall.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-y>(): Int'
             GET_FIELD 'y: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Base' type=Base
+              receiver: GET_VAR '<receiver: Base>' type=Base origin=null
   CLASS CLASS Test1
     CONSTRUCTOR public constructor Test1(xx: kotlin.Int, yy: kotlin.Int)
       BLOCK_BODY

compiler/testData/ir/irText/classes/classMembers.txt

@@ -14,7 +14,7 @@ FILE /classMembers.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-y>(): Int'
             GET_FIELD 'y: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'C' type=C
+              receiver: GET_VAR '<receiver: C>' type=C origin=null
     PROPERTY public final var z: kotlin.Int
       FIELD PROPERTY_BACKING_FIELD public final var z: kotlin.Int
         EXPRESSION_BODY
@@ -23,11 +23,11 @@ FILE /classMembers.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-z>(): Int'
             GET_FIELD 'z: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'C' type=C
+              receiver: GET_VAR '<receiver: C>' type=C origin=null
       FUN DEFAULT_PROPERTY_ACCESSOR public final fun <set-z>(<set-?>: kotlin.Int): kotlin.Unit
         BLOCK_BODY
           SET_FIELD 'z: Int' type=kotlin.Unit origin=null
-            receiver: THIS of 'C' type=C
+            receiver: GET_VAR '<receiver: C>' type=C origin=null
             value: GET_VAR 'value-parameter <set-?>: Int' type=kotlin.Int origin=null
     CONSTRUCTOR public constructor C()
       BLOCK_BODY
@@ -43,7 +43,7 @@ FILE /classMembers.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-property>(): Int'
             GET_FIELD 'property: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'C' type=C
+              receiver: GET_VAR '<receiver: C>' type=C origin=null
     PROPERTY public final val propertyWithGet: kotlin.Int
       FUN public final fun <get-propertyWithGet>(): kotlin.Int
         BLOCK_BODY
@@ -54,11 +54,11 @@ FILE /classMembers.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-propertyWithGetAndSet>(): Int'
             CALL '<get-z>(): Int' type=kotlin.Int origin=GET_PROPERTY
-              $this: THIS of 'C' type=C
+              $this: GET_VAR '<receiver: C>' type=C origin=null
       FUN public final fun <set-propertyWithGetAndSet>(value: kotlin.Int): kotlin.Unit
         BLOCK_BODY
           CALL '<set-z>(Int): Unit' type=kotlin.Unit origin=EQ
-            $this: THIS of 'C' type=C
+            $this: GET_VAR '<receiver: C>' type=C origin=null
             <set-?>: GET_VAR 'value-parameter value: Int' type=kotlin.Int origin=null
     FUN public final fun function(): kotlin.Unit
       BLOCK_BODY
@@ -87,7 +87,7 @@ FILE /classMembers.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='bar(): Unit'
             CALL 'foo(): Unit' type=kotlin.Unit origin=null
-              $this: THIS of 'NestedInterface' type=C.NestedInterface
+              $this: GET_VAR '<receiver: NestedInterface>' type=C.NestedInterface origin=null
     CLASS OBJECT companion object of C
       CONSTRUCTOR private constructor Companion()
         BLOCK_BODY

compiler/testData/ir/irText/classes/dataClasses.txt

@@ -12,7 +12,7 @@ FILE /dataClasses.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test1' type=Test1
+              receiver: GET_VAR '<receiver: Test1>' type=Test1 origin=null
     PROPERTY public final val y: kotlin.String
       FIELD PROPERTY_BACKING_FIELD public final val y: kotlin.String
         EXPRESSION_BODY
@@ -21,7 +21,7 @@ FILE /dataClasses.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-y>(): String'
             GET_FIELD 'y: String' type=kotlin.String origin=null
-              receiver: THIS of 'Test1' type=Test1
+              receiver: GET_VAR '<receiver: Test1>' type=Test1 origin=null
     PROPERTY public final val z: kotlin.Any
       FIELD PROPERTY_BACKING_FIELD public final val z: kotlin.Any
         EXPRESSION_BODY
@@ -30,22 +30,22 @@ FILE /dataClasses.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-z>(): Any'
             GET_FIELD 'z: Any' type=kotlin.Any origin=null
-              receiver: THIS of 'Test1' type=Test1
+              receiver: GET_VAR '<receiver: Test1>' type=Test1 origin=null
     FUN GENERATED_DATA_CLASS_MEMBER public final operator fun component1(): kotlin.Int
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='component1(): Int'
           CALL '<get-x>(): Int' type=kotlin.Int origin=GET_PROPERTY
-            $this: THIS of 'Test1' type=Test1
+            $this: GET_VAR '<receiver: Test1>' type=Test1 origin=null
     FUN GENERATED_DATA_CLASS_MEMBER public final operator fun component2(): kotlin.String
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='component2(): String'
           CALL '<get-y>(): String' type=kotlin.String origin=GET_PROPERTY
-            $this: THIS of 'Test1' type=Test1
+            $this: GET_VAR '<receiver: Test1>' type=Test1 origin=null
     FUN GENERATED_DATA_CLASS_MEMBER public final operator fun component3(): kotlin.Any
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='component3(): Any'
           CALL '<get-z>(): Any' type=kotlin.Any origin=GET_PROPERTY
-            $this: THIS of 'Test1' type=Test1
+            $this: GET_VAR '<receiver: Test1>' type=Test1 origin=null
     FUN GENERATED_DATA_CLASS_MEMBER public final fun copy(x: kotlin.Int = ..., y: kotlin.String = ..., z: kotlin.Any = ...): Test1
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='copy(Int = ..., String = ..., Any = ...): Test1'
@@ -60,15 +60,15 @@ FILE /dataClasses.kt
             CONST String type=kotlin.String value='Test1('
             CONST String type=kotlin.String value='x='
             CALL '<get-x>(): Int' type=kotlin.Int origin=GET_PROPERTY
-              $this: THIS of 'Test1' type=Test1
+              $this: GET_VAR '<receiver: Test1>' type=Test1 origin=null
             CONST String type=kotlin.String value=', '
             CONST String type=kotlin.String value='y='
             CALL '<get-y>(): String' type=kotlin.String origin=GET_PROPERTY
-              $this: THIS of 'Test1' type=Test1
+              $this: GET_VAR '<receiver: Test1>' type=Test1 origin=null
             CONST String type=kotlin.String value=', '
             CONST String type=kotlin.String value='z='
             CALL '<get-z>(): Any' type=kotlin.Any origin=GET_PROPERTY
-              $this: THIS of 'Test1' type=Test1
+              $this: GET_VAR '<receiver: Test1>' type=Test1 origin=null
             CONST String type=kotlin.String value=')'
     FUN GENERATED_DATA_CLASS_MEMBER public open override fun hashCode(): kotlin.Int
       BLOCK_BODY
@@ -77,7 +77,7 @@ FILE /dataClasses.kt
         SET_VAR 'tmp0_result: Int' type=kotlin.Unit origin=EQ
           CALL 'hashCode(): Int' type=kotlin.Int origin=null
             $this: CALL '<get-x>(): Int' type=kotlin.Int origin=GET_PROPERTY
-              $this: THIS of 'Test1' type=Test1
+              $this: GET_VAR '<receiver: Test1>' type=Test1 origin=null
         SET_VAR 'tmp0_result: Int' type=kotlin.Unit origin=EQ
           CALL 'plus(Int): Int' type=kotlin.Int origin=null
             $this: CALL 'times(Int): Int' type=kotlin.Int origin=null
@@ -85,7 +85,7 @@ FILE /dataClasses.kt
               other: CONST Int type=kotlin.Int value='31'
             other: CALL 'hashCode(): Int' type=kotlin.Int origin=null
               $this: CALL '<get-y>(): String' type=kotlin.String origin=GET_PROPERTY
-                $this: THIS of 'Test1' type=Test1
+                $this: GET_VAR '<receiver: Test1>' type=Test1 origin=null
         SET_VAR 'tmp0_result: Int' type=kotlin.Unit origin=EQ
           CALL 'plus(Int): Int' type=kotlin.Int origin=null
             $this: CALL 'times(Int): Int' type=kotlin.Int origin=null
@@ -93,7 +93,7 @@ FILE /dataClasses.kt
               other: CONST Int type=kotlin.Int value='31'
             other: CALL 'hashCode(): Int' type=kotlin.Int origin=null
               $this: CALL '<get-z>(): Any' type=kotlin.Any origin=GET_PROPERTY
-                $this: THIS of 'Test1' type=Test1
+                $this: GET_VAR '<receiver: Test1>' type=Test1 origin=null
         RETURN type=kotlin.Nothing from='hashCode(): Int'
           GET_VAR 'tmp0_result: Int' type=kotlin.Int origin=null
     FUN GENERATED_DATA_CLASS_MEMBER public open override fun equals(other: kotlin.Any?): kotlin.Boolean
@@ -101,7 +101,7 @@ FILE /dataClasses.kt
         WHEN type=kotlin.Unit origin=null
           BRANCH
             if: CALL 'EQEQEQ(Any?, Any?): Boolean' type=kotlin.Boolean origin=EQEQEQ
-              arg0: THIS of 'Test1' type=Test1
+              arg0: GET_VAR '<receiver: Test1>' type=Test1 origin=null
               arg1: GET_VAR 'value-parameter other: Any?' type=kotlin.Any? origin=null
             then: RETURN type=kotlin.Nothing from='equals(Any?): Boolean'
               CONST Boolean type=kotlin.Boolean value='true'
@@ -119,7 +119,7 @@ FILE /dataClasses.kt
             if: CALL 'NOT(Boolean): Boolean' type=kotlin.Boolean origin=EXCLEQ
               arg0: CALL 'EQEQ(Any?, Any?): Boolean' type=kotlin.Boolean origin=EXCLEQ
                 arg0: CALL '<get-x>(): Int' type=kotlin.Int origin=GET_PROPERTY
-                  $this: THIS of 'Test1' type=Test1
+                  $this: GET_VAR '<receiver: Test1>' type=Test1 origin=null
                 arg1: CALL '<get-x>(): Int' type=kotlin.Int origin=GET_PROPERTY
                   $this: GET_VAR 'tmp0_other_with_cast: Test1' type=Test1 origin=null
             then: RETURN type=kotlin.Nothing from='equals(Any?): Boolean'
@@ -129,7 +129,7 @@ FILE /dataClasses.kt
             if: CALL 'NOT(Boolean): Boolean' type=kotlin.Boolean origin=EXCLEQ
               arg0: CALL 'EQEQ(Any?, Any?): Boolean' type=kotlin.Boolean origin=EXCLEQ
                 arg0: CALL '<get-y>(): String' type=kotlin.String origin=GET_PROPERTY
-                  $this: THIS of 'Test1' type=Test1
+                  $this: GET_VAR '<receiver: Test1>' type=Test1 origin=null
                 arg1: CALL '<get-y>(): String' type=kotlin.String origin=GET_PROPERTY
                   $this: GET_VAR 'tmp0_other_with_cast: Test1' type=Test1 origin=null
             then: RETURN type=kotlin.Nothing from='equals(Any?): Boolean'
@@ -139,7 +139,7 @@ FILE /dataClasses.kt
             if: CALL 'NOT(Boolean): Boolean' type=kotlin.Boolean origin=EXCLEQ
               arg0: CALL 'EQEQ(Any?, Any?): Boolean' type=kotlin.Boolean origin=EXCLEQ
                 arg0: CALL '<get-z>(): Any' type=kotlin.Any origin=GET_PROPERTY
-                  $this: THIS of 'Test1' type=Test1
+                  $this: GET_VAR '<receiver: Test1>' type=Test1 origin=null
                 arg1: CALL '<get-z>(): Any' type=kotlin.Any origin=GET_PROPERTY
                   $this: GET_VAR 'tmp0_other_with_cast: Test1' type=Test1 origin=null
             then: RETURN type=kotlin.Nothing from='equals(Any?): Boolean'

compiler/testData/ir/irText/classes/delegatedImplementation.txt

@@ -22,34 +22,34 @@ FILE /delegatedImplementation.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): String'
             GET_FIELD 'x: String' type=kotlin.String origin=null
-              receiver: THIS of 'IOther' type=IOther
+              receiver: GET_VAR '<receiver: IOther>' type=IOther origin=null
     PROPERTY public abstract var y: kotlin.Int
       FUN DEFAULT_PROPERTY_ACCESSOR public abstract fun <get-y>(): kotlin.Int
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-y>(): Int'
             GET_FIELD 'y: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'IOther' type=IOther
+              receiver: GET_VAR '<receiver: IOther>' type=IOther origin=null
       FUN DEFAULT_PROPERTY_ACCESSOR public abstract fun <set-y>(<set-?>: kotlin.Int): kotlin.Unit
         BLOCK_BODY
           SET_FIELD 'y: Int' type=kotlin.Unit origin=null
-            receiver: THIS of 'IOther' type=IOther
+            receiver: GET_VAR '<receiver: IOther>' type=IOther origin=null
             value: GET_VAR 'value-parameter <set-?>: Int' type=kotlin.Int origin=null
     PROPERTY public abstract val kotlin.Byte.z1: kotlin.Int
       FUN DEFAULT_PROPERTY_ACCESSOR public abstract fun kotlin.Byte.<get-z1>(): kotlin.Int
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-z1>() on Byte: Int'
             GET_FIELD 'z1: Int on Byte' type=kotlin.Int origin=null
-              receiver: THIS of 'IOther' type=IOther
+              receiver: GET_VAR '<receiver: IOther>' type=IOther origin=null
     PROPERTY public abstract var kotlin.Byte.z2: kotlin.Int
       FUN DEFAULT_PROPERTY_ACCESSOR public abstract fun kotlin.Byte.<get-z2>(): kotlin.Int
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-z2>() on Byte: Int'
             GET_FIELD 'z2: Int on Byte' type=kotlin.Int origin=null
-              receiver: THIS of 'IOther' type=IOther
+              receiver: GET_VAR '<receiver: IOther>' type=IOther origin=null
       FUN DEFAULT_PROPERTY_ACCESSOR public abstract fun kotlin.Byte.<set-z2>(<set-?>: kotlin.Int): kotlin.Unit
         BLOCK_BODY
           SET_FIELD 'z2: Int on Byte' type=kotlin.Unit origin=null
-            receiver: THIS of 'IOther' type=IOther
+            receiver: GET_VAR '<receiver: IOther>' type=IOther origin=null
             value: GET_VAR 'value-parameter <set-?>: Int' type=kotlin.Int origin=null
   FUN public fun otherImpl(x0: kotlin.String, y0: kotlin.Int): IOther
     BLOCK_BODY
@@ -68,7 +68,7 @@ FILE /delegatedImplementation.kt
                 BLOCK_BODY
                   RETURN type=kotlin.Nothing from='<get-x>(): String'
                     GET_FIELD 'x: String' type=kotlin.String origin=null
-                      receiver: THIS of '<no name provided>' type=otherImpl.<no name provided>
+                      receiver: GET_VAR '<receiver: <no name provided>>' type=otherImpl.<no name provided> origin=null
             PROPERTY public open override var y: kotlin.Int
               FIELD PROPERTY_BACKING_FIELD public open override var y: kotlin.Int
                 EXPRESSION_BODY
@@ -77,11 +77,11 @@ FILE /delegatedImplementation.kt
                 BLOCK_BODY
                   RETURN type=kotlin.Nothing from='<get-y>(): Int'
                     GET_FIELD 'y: Int' type=kotlin.Int origin=null
-                      receiver: THIS of '<no name provided>' type=otherImpl.<no name provided>
+                      receiver: GET_VAR '<receiver: <no name provided>>' type=otherImpl.<no name provided> origin=null
               FUN DEFAULT_PROPERTY_ACCESSOR public open override fun <set-y>(<set-?>: kotlin.Int): kotlin.Unit
                 BLOCK_BODY
                   SET_FIELD 'y: Int' type=kotlin.Unit origin=null
-                    receiver: THIS of '<no name provided>' type=otherImpl.<no name provided>
+                    receiver: GET_VAR '<receiver: <no name provided>>' type=otherImpl.<no name provided> origin=null
                     value: GET_VAR 'value-parameter <set-?>: Int' type=kotlin.Int origin=null
             PROPERTY public open override val kotlin.Byte.z1: kotlin.Int
               FUN public open override fun kotlin.Byte.<get-z1>(): kotlin.Int
@@ -119,7 +119,7 @@ FILE /delegatedImplementation.kt
       BLOCK_BODY
         CALL 'qux() on String: Unit' type=kotlin.Unit origin=null
           $this: GET_VAR '`Test1$IBase$delegate`: BaseImpl' type=BaseImpl origin=null
-          $receiver: $RECEIVER of 'qux() on String: Unit' type=kotlin.String
+          $receiver: GET_VAR '<receiver: qux() on String: Unit>' type=kotlin.String origin=null
   CLASS CLASS Test2
     CONSTRUCTOR public constructor Test2()
       BLOCK_BODY
@@ -143,7 +143,7 @@ FILE /delegatedImplementation.kt
       BLOCK_BODY
         CALL 'qux() on String: Unit' type=kotlin.Unit origin=null
           $this: GET_VAR '`Test2$IBase$delegate`: BaseImpl' type=BaseImpl origin=null
-          $receiver: $RECEIVER of 'qux() on String: Unit' type=kotlin.String
+          $receiver: GET_VAR '<receiver: qux() on String: Unit>' type=kotlin.String origin=null
     FIELD DELEGATE val `Test2$IOther$delegate`: IOther
       EXPRESSION_BODY
         CALL 'otherImpl(String, Int): IOther' type=IOther origin=null
@@ -155,7 +155,7 @@ FILE /delegatedImplementation.kt
           RETURN type=kotlin.Nothing from='<get-z1>() on Byte: Int'
             CALL '<get-z1>() on Byte: Int' type=kotlin.Int origin=null
               $this: GET_VAR '`Test2$IOther$delegate`: IOther' type=IOther origin=null
-              $receiver: $RECEIVER of 'z1: Int on Byte' type=kotlin.Byte
+              $receiver: GET_VAR '<receiver: z1: Int on Byte>' type=kotlin.Byte origin=null
     PROPERTY DELEGATED_MEMBER public open override val x: kotlin.String
       FUN DELEGATED_MEMBER public open override fun <get-x>(): kotlin.String
         BLOCK_BODY
@@ -168,12 +168,12 @@ FILE /delegatedImplementation.kt
           RETURN type=kotlin.Nothing from='<get-z2>() on Byte: Int'
             CALL '<get-z2>() on Byte: Int' type=kotlin.Int origin=null
               $this: GET_VAR '`Test2$IOther$delegate`: IOther' type=IOther origin=null
-              $receiver: $RECEIVER of 'z2: Int on Byte' type=kotlin.Byte
+              $receiver: GET_VAR '<receiver: z2: Int on Byte>' type=kotlin.Byte origin=null
       FUN DELEGATED_MEMBER public open override fun kotlin.Byte.<set-z2>(<set-?>: kotlin.Int): kotlin.Unit
         BLOCK_BODY
           CALL '<set-z2>(Int) on Byte: Unit' type=kotlin.Unit origin=null
             $this: GET_VAR '`Test2$IOther$delegate`: IOther' type=IOther origin=null
-            $receiver: $RECEIVER of 'z2: Int on Byte' type=kotlin.Byte
+            $receiver: GET_VAR '<receiver: z2: Int on Byte>' type=kotlin.Byte origin=null
             <set-?>: GET_VAR 'value-parameter <set-?>: Int' type=kotlin.Int origin=null
     PROPERTY DELEGATED_MEMBER public open override var y: kotlin.Int
       FUN DELEGATED_MEMBER public open override fun <get-y>(): kotlin.Int

compiler/testData/ir/irText/classes/enum.txt

@@ -25,7 +25,7 @@ FILE /enum.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestEnum2' type=TestEnum2
+              receiver: GET_VAR '<receiver: TestEnum2>' type=TestEnum2 origin=null
     ENUM_ENTRY enum entry TEST1
       init: ENUM_CONSTRUCTOR_CALL 'constructor TestEnum2(Int)'
         x: CONST Int type=kotlin.Int value='1'
@@ -73,7 +73,7 @@ FILE /enum.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestEnum4' type=TestEnum4
+              receiver: GET_VAR '<receiver: TestEnum4>' type=TestEnum4 origin=null
     ENUM_ENTRY enum entry TEST1
       init: ENUM_CONSTRUCTOR_CALL 'constructor TEST1()'
       class: CLASS ENUM_ENTRY TEST1
@@ -100,13 +100,13 @@ FILE /enum.kt
             BLOCK_BODY
               RETURN type=kotlin.Nothing from='<get-z>(): Int'
                 GET_FIELD 'z: Int' type=kotlin.Int origin=null
-                  receiver: THIS of 'TEST2' type=TestEnum4.TEST2
+                  receiver: GET_VAR '<receiver: TEST2>' type=TestEnum4.TEST2 origin=null
         ANONYMOUS_INITIALIZER TEST2
           BLOCK_BODY
             SET_FIELD 'z: Int' type=kotlin.Unit origin=null
-              receiver: THIS of 'TEST2' type=TestEnum4.TEST2
+              receiver: GET_VAR '<receiver: TEST2>' type=TestEnum4.TEST2 origin=null
               value: CALL '<get-x>(): Int' type=kotlin.Int origin=GET_PROPERTY
-                $this: THIS of 'TEST2' type=TestEnum4.TEST2
+                $this: GET_VAR '<receiver: TEST2>' type=TestEnum4.TEST2 origin=null
         FUN public open override fun foo(): kotlin.Unit
           BLOCK_BODY
             CALL 'println(Any?): Unit' type=kotlin.Unit origin=null

compiler/testData/ir/irText/classes/enumWithSecondaryCtor.txt

@@ -12,7 +12,7 @@ FILE /enumWithSecondaryCtor.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test0' type=Test0
+              receiver: GET_VAR '<receiver: Test0>' type=Test0 origin=null
     ENUM_ENTRY enum entry ZERO
       init: ENUM_CONSTRUCTOR_CALL 'constructor Test0()'
     CONSTRUCTOR private constructor Test0()
@@ -36,7 +36,7 @@ FILE /enumWithSecondaryCtor.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test1' type=Test1
+              receiver: GET_VAR '<receiver: Test1>' type=Test1 origin=null
     ENUM_ENTRY enum entry ZERO
       init: ENUM_CONSTRUCTOR_CALL 'constructor Test1()'
     ENUM_ENTRY enum entry ONE
@@ -63,7 +63,7 @@ FILE /enumWithSecondaryCtor.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test2' type=Test2
+              receiver: GET_VAR '<receiver: Test2>' type=Test2 origin=null
     ENUM_ENTRY enum entry ZERO
       init: ENUM_CONSTRUCTOR_CALL 'constructor ZERO()'
       class: CLASS ENUM_ENTRY ZERO

compiler/testData/ir/irText/classes/initBlock.txt

@@ -20,7 +20,7 @@ FILE /initBlock.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test2' type=Test2
+              receiver: GET_VAR '<receiver: Test2>' type=Test2 origin=null
     ANONYMOUS_INITIALIZER Test2
       BLOCK_BODY
         CALL 'println(): Unit' type=kotlin.Unit origin=null

compiler/testData/ir/irText/classes/initVal.txt

@@ -12,7 +12,7 @@ FILE /initVal.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestInitValFromParameter' type=TestInitValFromParameter
+              receiver: GET_VAR '<receiver: TestInitValFromParameter>' type=TestInitValFromParameter origin=null
   CLASS CLASS TestInitValInClass
     CONSTRUCTOR public constructor TestInitValInClass()
       BLOCK_BODY
@@ -26,7 +26,7 @@ FILE /initVal.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestInitValInClass' type=TestInitValInClass
+              receiver: GET_VAR '<receiver: TestInitValInClass>' type=TestInitValInClass origin=null
   CLASS CLASS TestInitValInInitBlock
     CONSTRUCTOR public constructor TestInitValInInitBlock()
       BLOCK_BODY
@@ -38,9 +38,9 @@ FILE /initVal.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestInitValInInitBlock' type=TestInitValInInitBlock
+              receiver: GET_VAR '<receiver: TestInitValInInitBlock>' type=TestInitValInInitBlock origin=null
     ANONYMOUS_INITIALIZER TestInitValInInitBlock
       BLOCK_BODY
         SET_FIELD 'x: Int' type=kotlin.Unit origin=null
-          receiver: THIS of 'TestInitValInInitBlock' type=TestInitValInInitBlock
+          receiver: GET_VAR '<receiver: TestInitValInInitBlock>' type=TestInitValInInitBlock origin=null
           value: CONST Int type=kotlin.Int value='0'

compiler/testData/ir/irText/classes/initVar.txt

@@ -12,11 +12,11 @@ FILE /initVar.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestInitVarFromParameter' type=TestInitVarFromParameter
+              receiver: GET_VAR '<receiver: TestInitVarFromParameter>' type=TestInitVarFromParameter origin=null
       FUN DEFAULT_PROPERTY_ACCESSOR public final fun <set-x>(<set-?>: kotlin.Int): kotlin.Unit
         BLOCK_BODY
           SET_FIELD 'x: Int' type=kotlin.Unit origin=null
-            receiver: THIS of 'TestInitVarFromParameter' type=TestInitVarFromParameter
+            receiver: GET_VAR '<receiver: TestInitVarFromParameter>' type=TestInitVarFromParameter origin=null
             value: GET_VAR 'value-parameter <set-?>: Int' type=kotlin.Int origin=null
   CLASS CLASS TestInitVarInClass
     CONSTRUCTOR public constructor TestInitVarInClass()
@@ -31,11 +31,11 @@ FILE /initVar.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestInitVarInClass' type=TestInitVarInClass
+              receiver: GET_VAR '<receiver: TestInitVarInClass>' type=TestInitVarInClass origin=null
       FUN DEFAULT_PROPERTY_ACCESSOR public final fun <set-x>(<set-?>: kotlin.Int): kotlin.Unit
         BLOCK_BODY
           SET_FIELD 'x: Int' type=kotlin.Unit origin=null
-            receiver: THIS of 'TestInitVarInClass' type=TestInitVarInClass
+            receiver: GET_VAR '<receiver: TestInitVarInClass>' type=TestInitVarInClass origin=null
             value: GET_VAR 'value-parameter <set-?>: Int' type=kotlin.Int origin=null
   CLASS CLASS TestInitVarInInitBlock
     CONSTRUCTOR public constructor TestInitVarInInitBlock()
@@ -48,16 +48,16 @@ FILE /initVar.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestInitVarInInitBlock' type=TestInitVarInInitBlock
+              receiver: GET_VAR '<receiver: TestInitVarInInitBlock>' type=TestInitVarInInitBlock origin=null
       FUN DEFAULT_PROPERTY_ACCESSOR public final fun <set-x>(<set-?>: kotlin.Int): kotlin.Unit
         BLOCK_BODY
           SET_FIELD 'x: Int' type=kotlin.Unit origin=null
-            receiver: THIS of 'TestInitVarInInitBlock' type=TestInitVarInInitBlock
+            receiver: GET_VAR '<receiver: TestInitVarInInitBlock>' type=TestInitVarInInitBlock origin=null
             value: GET_VAR 'value-parameter <set-?>: Int' type=kotlin.Int origin=null
     ANONYMOUS_INITIALIZER TestInitVarInInitBlock
       BLOCK_BODY
         CALL '<set-x>(Int): Unit' type=kotlin.Unit origin=EQ
-          $this: THIS of 'TestInitVarInInitBlock' type=TestInitVarInInitBlock
+          $this: GET_VAR '<receiver: TestInitVarInInitBlock>' type=TestInitVarInInitBlock origin=null
           <set-?>: CONST Int type=kotlin.Int value='0'
   CLASS CLASS TestInitVarWithCustomSetter
     CONSTRUCTOR public constructor TestInitVarWithCustomSetter()
@@ -72,7 +72,7 @@ FILE /initVar.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestInitVarWithCustomSetter' type=TestInitVarWithCustomSetter
+              receiver: GET_VAR '<receiver: TestInitVarWithCustomSetter>' type=TestInitVarWithCustomSetter origin=null
       FUN public final fun <set-x>(value: kotlin.Int): kotlin.Unit
         BLOCK_BODY
           SET_FIELD 'x: Int' type=kotlin.Unit origin=EQ
@@ -84,7 +84,7 @@ FILE /initVar.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestInitVarWithCustomSetterWithExplicitCtor' type=TestInitVarWithCustomSetterWithExplicitCtor
+              receiver: GET_VAR '<receiver: TestInitVarWithCustomSetterWithExplicitCtor>' type=TestInitVarWithCustomSetterWithExplicitCtor origin=null
       FUN public final fun <set-x>(value: kotlin.Int): kotlin.Unit
         BLOCK_BODY
           SET_FIELD 'x: Int' type=kotlin.Unit origin=EQ
@@ -92,7 +92,7 @@ FILE /initVar.kt
     ANONYMOUS_INITIALIZER TestInitVarWithCustomSetterWithExplicitCtor
       BLOCK_BODY
         CALL '<set-x>(Int): Unit' type=kotlin.Unit origin=EQ
-          $this: THIS of 'TestInitVarWithCustomSetterWithExplicitCtor' type=TestInitVarWithCustomSetterWithExplicitCtor
+          $this: GET_VAR '<receiver: TestInitVarWithCustomSetterWithExplicitCtor>' type=TestInitVarWithCustomSetterWithExplicitCtor origin=null
           value: CONST Int type=kotlin.Int value='0'
     CONSTRUCTOR public constructor TestInitVarWithCustomSetterWithExplicitCtor()
       BLOCK_BODY
@@ -105,7 +105,7 @@ FILE /initVar.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestInitVarWithCustomSetterInCtor' type=TestInitVarWithCustomSetterInCtor
+              receiver: GET_VAR '<receiver: TestInitVarWithCustomSetterInCtor>' type=TestInitVarWithCustomSetterInCtor origin=null
       FUN public final fun <set-x>(value: kotlin.Int): kotlin.Unit
         BLOCK_BODY
           SET_FIELD 'x: Int' type=kotlin.Unit origin=EQ
@@ -115,5 +115,5 @@ FILE /initVar.kt
         DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
         INSTANCE_INITIALIZER_CALL classDescriptor='TestInitVarWithCustomSetterInCtor'
         CALL '<set-x>(Int): Unit' type=kotlin.Unit origin=EQ
-          $this: THIS of 'TestInitVarWithCustomSetterInCtor' type=TestInitVarWithCustomSetterInCtor
+          $this: GET_VAR '<receiver: TestInitVarWithCustomSetterInCtor>' type=TestInitVarWithCustomSetterInCtor origin=null
           value: CONST Int type=kotlin.Int value='42'

compiler/testData/ir/irText/classes/innerClass.txt

@@ -13,5 +13,5 @@ FILE /innerClass.kt
       CONSTRUCTOR public constructor DerivedInnerClass()
         BLOCK_BODY
           DELEGATING_CONSTRUCTOR_CALL 'constructor TestInnerClass()'
-            $this: THIS of 'Outer' type=Outer
+            $this: GET_VAR '<receiver: Outer>' type=Outer origin=null
           INSTANCE_INITIALIZER_CALL classDescriptor='DerivedInnerClass'

compiler/testData/ir/irText/classes/objectLiteralExpressions.txt

@@ -51,7 +51,7 @@ FILE /objectLiteralExpressions.kt
               CONSTRUCTOR public constructor <no name provided>()
                 BLOCK_BODY
                   DELEGATING_CONSTRUCTOR_CALL 'constructor Inner()'
-                    $this: THIS of 'Outer' type=Outer
+                    $this: GET_VAR '<receiver: Outer>' type=Outer origin=null
                   INSTANCE_INITIALIZER_CALL classDescriptor='<no name provided>'
               FUN public open override fun foo(): kotlin.Unit
                 BLOCK_BODY
@@ -66,7 +66,7 @@ FILE /objectLiteralExpressions.kt
             CONSTRUCTOR public constructor <no name provided>()
               BLOCK_BODY
                 DELEGATING_CONSTRUCTOR_CALL 'constructor Inner()'
-                  $this: $RECEIVER of 'test4() on Outer: Outer.Inner' type=Outer
+                  $this: GET_VAR '<receiver: test4() on Outer: Outer.Inner>' type=Outer origin=null
                 INSTANCE_INITIALIZER_CALL classDescriptor='<no name provided>'
             FUN public open override fun foo(): kotlin.Unit
               BLOCK_BODY

compiler/testData/ir/irText/classes/objectWithInitializers.txt

@@ -17,17 +17,17 @@ FILE /objectWithInitializers.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test' type=Test
+              receiver: GET_VAR '<receiver: Test>' type=Test origin=null
     PROPERTY public final val y: kotlin.Int
       FIELD PROPERTY_BACKING_FIELD public final val y: kotlin.Int
       FUN DEFAULT_PROPERTY_ACCESSOR public final fun <get-y>(): kotlin.Int
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-y>(): Int'
             GET_FIELD 'y: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test' type=Test
+              receiver: GET_VAR '<receiver: Test>' type=Test origin=null
     ANONYMOUS_INITIALIZER Test
       BLOCK_BODY
         SET_FIELD 'y: Int' type=kotlin.Unit origin=null
-          receiver: THIS of 'Test' type=Test
+          receiver: GET_VAR '<receiver: Test>' type=Test origin=null
           value: CALL '<get-x>(): Int' type=kotlin.Int origin=GET_PROPERTY
-            $this: THIS of 'Test' type=Test
+            $this: GET_VAR '<receiver: Test>' type=Test origin=null

compiler/testData/ir/irText/classes/outerClassAccess.kt

@@ -0,0 +1,20 @@
+class Outer {
+    fun foo() {}
+
+    inner class Inner {
+        fun test() {
+            foo()
+        }
+
+        inner class Inner2 {
+            fun test2() {
+                test()
+                foo()
+            }
+
+            fun Outer.test3() {
+                foo()
+            }
+        }
+    }
+}

compiler/testData/ir/irText/classes/outerClassAccess.txt

@@ -0,0 +1,32 @@
+FILE /outerClassAccess.kt
+  CLASS CLASS Outer
+    CONSTRUCTOR public constructor Outer()
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
+        INSTANCE_INITIALIZER_CALL classDescriptor='Outer'
+    FUN public final fun foo(): kotlin.Unit
+      BLOCK_BODY
+    CLASS CLASS Inner
+      CONSTRUCTOR public constructor Inner()
+        BLOCK_BODY
+          DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
+          INSTANCE_INITIALIZER_CALL classDescriptor='Inner'
+      FUN public final fun test(): kotlin.Unit
+        BLOCK_BODY
+          CALL 'foo(): Unit' type=kotlin.Unit origin=null
+            $this: GET_VAR '<receiver: Outer>' type=Outer origin=null
+      CLASS CLASS Inner2
+        CONSTRUCTOR public constructor Inner2()
+          BLOCK_BODY
+            DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
+            INSTANCE_INITIALIZER_CALL classDescriptor='Inner2'
+        FUN public final fun test2(): kotlin.Unit
+          BLOCK_BODY
+            CALL 'test(): Unit' type=kotlin.Unit origin=null
+              $this: GET_VAR '<receiver: Inner>' type=Outer.Inner origin=null
+            CALL 'foo(): Unit' type=kotlin.Unit origin=null
+              $this: GET_VAR '<receiver: Outer>' type=Outer origin=null
+        FUN public final fun Outer.test3(): kotlin.Unit
+          BLOCK_BODY
+            CALL 'foo(): Unit' type=kotlin.Unit origin=null
+              $this: GET_VAR '<receiver: test3() on Outer: Unit>' type=Outer origin=null

compiler/testData/ir/irText/classes/primaryConstructor.txt

@@ -12,7 +12,7 @@ FILE /primaryConstructor.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test1' type=Test1
+              receiver: GET_VAR '<receiver: Test1>' type=Test1 origin=null
     PROPERTY public final val y: kotlin.Int
       FIELD PROPERTY_BACKING_FIELD public final val y: kotlin.Int
         EXPRESSION_BODY
@@ -21,7 +21,7 @@ FILE /primaryConstructor.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-y>(): Int'
             GET_FIELD 'y: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test1' type=Test1
+              receiver: GET_VAR '<receiver: Test1>' type=Test1 origin=null
   CLASS CLASS Test2
     CONSTRUCTOR public constructor Test2(x: kotlin.Int, y: kotlin.Int)
       BLOCK_BODY
@@ -35,7 +35,7 @@ FILE /primaryConstructor.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-y>(): Int'
             GET_FIELD 'y: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test2' type=Test2
+              receiver: GET_VAR '<receiver: Test2>' type=Test2 origin=null
     PROPERTY public final val x: kotlin.Int
       FIELD PROPERTY_BACKING_FIELD public final val x: kotlin.Int
         EXPRESSION_BODY
@@ -44,7 +44,7 @@ FILE /primaryConstructor.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test2' type=Test2
+              receiver: GET_VAR '<receiver: Test2>' type=Test2 origin=null
   CLASS CLASS Test3
     CONSTRUCTOR public constructor Test3(x: kotlin.Int, y: kotlin.Int)
       BLOCK_BODY
@@ -58,16 +58,16 @@ FILE /primaryConstructor.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-y>(): Int'
             GET_FIELD 'y: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test3' type=Test3
+              receiver: GET_VAR '<receiver: Test3>' type=Test3 origin=null
     PROPERTY public final val x: kotlin.Int
       FIELD PROPERTY_BACKING_FIELD public final val x: kotlin.Int
       FUN DEFAULT_PROPERTY_ACCESSOR public final fun <get-x>(): kotlin.Int
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'Test3' type=Test3
+              receiver: GET_VAR '<receiver: Test3>' type=Test3 origin=null
     ANONYMOUS_INITIALIZER Test3
       BLOCK_BODY
         SET_FIELD 'x: Int' type=kotlin.Unit origin=null
-          receiver: THIS of 'Test3' type=Test3
+          receiver: GET_VAR '<receiver: Test3>' type=Test3 origin=null
           value: GET_VAR 'value-parameter x: Int' type=kotlin.Int origin=null

compiler/testData/ir/irText/classes/primaryConstructorWithSuperConstructorCall.txt

@@ -27,7 +27,7 @@ FILE /primaryConstructorWithSuperConstructorCall.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestWithDelegatingConstructor' type=TestWithDelegatingConstructor
+              receiver: GET_VAR '<receiver: TestWithDelegatingConstructor>' type=TestWithDelegatingConstructor origin=null
     PROPERTY public final val y: kotlin.Int
       FIELD PROPERTY_BACKING_FIELD public final val y: kotlin.Int
         EXPRESSION_BODY
@@ -36,7 +36,7 @@ FILE /primaryConstructorWithSuperConstructorCall.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-y>(): Int'
             GET_FIELD 'y: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestWithDelegatingConstructor' type=TestWithDelegatingConstructor
+              receiver: GET_VAR '<receiver: TestWithDelegatingConstructor>' type=TestWithDelegatingConstructor origin=null
     CONSTRUCTOR public constructor TestWithDelegatingConstructor(x: kotlin.Int)
       BLOCK_BODY
         DELEGATING_CONSTRUCTOR_CALL 'constructor TestWithDelegatingConstructor(Int, Int)'

compiler/testData/ir/irText/classes/qualifiedSuperCalls.txt

@@ -23,15 +23,15 @@ FILE /qualifiedSuperCalls.kt
     FUN public open override fun foo(): kotlin.Unit
       BLOCK_BODY
         CALL 'foo(): Unit' superQualifier=ILeft type=kotlin.Unit origin=null
-          $this: THIS of 'CBoth' type=ILeft
+          $this: GET_VAR '<receiver: CBoth>' type=CBoth origin=null
         CALL 'foo(): Unit' superQualifier=IRight type=kotlin.Unit origin=null
-          $this: THIS of 'CBoth' type=IRight
+          $this: GET_VAR '<receiver: CBoth>' type=CBoth origin=null
     PROPERTY public open override val bar: kotlin.Int
       FUN public open override fun <get-bar>(): kotlin.Int
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-bar>(): Int'
             CALL 'plus(Int): Int' type=kotlin.Int origin=PLUS
               $this: CALL '<get-bar>(): Int' superQualifier=ILeft type=kotlin.Int origin=GET_PROPERTY
-                $this: THIS of 'CBoth' type=ILeft
+                $this: GET_VAR '<receiver: CBoth>' type=CBoth origin=null
               other: CALL '<get-bar>(): Int' superQualifier=IRight type=kotlin.Int origin=GET_PROPERTY
-                $this: THIS of 'CBoth' type=IRight
+                $this: GET_VAR '<receiver: CBoth>' type=CBoth origin=null

compiler/testData/ir/irText/classes/sealedClasses.txt

@@ -17,7 +17,7 @@ FILE /sealedClasses.kt
           BLOCK_BODY
             RETURN type=kotlin.Nothing from='<get-number>(): Double'
               GET_FIELD 'number: Double' type=kotlin.Double origin=null
-                receiver: THIS of 'Const' type=Expr.Const
+                receiver: GET_VAR '<receiver: Const>' type=Expr.Const origin=null
     CLASS CLASS Sum
       CONSTRUCTOR public constructor Sum(e1: Expr, e2: Expr)
         BLOCK_BODY
@@ -31,7 +31,7 @@ FILE /sealedClasses.kt
           BLOCK_BODY
             RETURN type=kotlin.Nothing from='<get-e1>(): Expr'
               GET_FIELD 'e1: Expr' type=Expr origin=null
-                receiver: THIS of 'Sum' type=Expr.Sum
+                receiver: GET_VAR '<receiver: Sum>' type=Expr.Sum origin=null
       PROPERTY public final val e2: Expr
         FIELD PROPERTY_BACKING_FIELD public final val e2: Expr
           EXPRESSION_BODY
@@ -40,7 +40,7 @@ FILE /sealedClasses.kt
           BLOCK_BODY
             RETURN type=kotlin.Nothing from='<get-e2>(): Expr'
               GET_FIELD 'e2: Expr' type=Expr origin=null
-                receiver: THIS of 'Sum' type=Expr.Sum
+                receiver: GET_VAR '<receiver: Sum>' type=Expr.Sum origin=null
     CLASS OBJECT NotANumber
       CONSTRUCTOR private constructor NotANumber()
         BLOCK_BODY

compiler/testData/ir/irText/classes/secondaryConstructorWithInitializersFromClassBody.txt

@@ -13,7 +13,7 @@ FILE /secondaryConstructorWithInitializersFromClassBody.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestProperty' type=TestProperty
+              receiver: GET_VAR '<receiver: TestProperty>' type=TestProperty origin=null
     CONSTRUCTOR public constructor TestProperty()
       BLOCK_BODY
         DELEGATING_CONSTRUCTOR_CALL 'constructor Base()'
@@ -25,11 +25,11 @@ FILE /secondaryConstructorWithInitializersFromClassBody.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-x>(): Int'
             GET_FIELD 'x: Int' type=kotlin.Int origin=null
-              receiver: THIS of 'TestInitBlock' type=TestInitBlock
+              receiver: GET_VAR '<receiver: TestInitBlock>' type=TestInitBlock origin=null
     ANONYMOUS_INITIALIZER TestInitBlock
       BLOCK_BODY
         SET_FIELD 'x: Int' type=kotlin.Unit origin=null
-          receiver: THIS of 'TestInitBlock' type=TestInitBlock
+          receiver: GET_VAR '<receiver: TestInitBlock>' type=TestInitBlock origin=null
           value: CONST Int type=kotlin.Int value='0'
     CONSTRUCTOR public constructor TestInitBlock()
       BLOCK_BODY

compiler/testData/ir/irText/classes/superCalls.txt

@@ -14,7 +14,7 @@ FILE /superCalls.kt
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-bar>(): String'
             GET_FIELD 'bar: String' type=kotlin.String origin=null
-              receiver: THIS of 'Base' type=Base
+              receiver: GET_VAR '<receiver: Base>' type=Base origin=null
   CLASS CLASS Derived
     CONSTRUCTOR public constructor Derived()
       BLOCK_BODY
@@ -23,10 +23,10 @@ FILE /superCalls.kt
     FUN public open override fun foo(): kotlin.Unit
       BLOCK_BODY
         CALL 'foo(): Unit' superQualifier=Base type=kotlin.Unit origin=null
-          $this: THIS of 'Derived' type=Base
+          $this: GET_VAR '<receiver: Derived>' type=Derived origin=null
     PROPERTY public open override val bar: kotlin.String
       FUN public open override fun <get-bar>(): kotlin.String
         BLOCK_BODY
           RETURN type=kotlin.Nothing from='<get-bar>(): String'
             CALL '<get-bar>(): String' superQualifier=Base type=kotlin.String origin=GET_PROPERTY
-              $this: THIS of 'Derived' type=Base
+              $this: GET_VAR '<receiver: Derived>' type=Derived origin=null