Fix for KT-13374: CompilationException: Inline function call with anonymous object implementing an interface by delegation

#KT-13374 Fixed

compiler/backend/src/org/jetbrains/kotlin/codegen/ImplementationBodyCodegen.java

@@ -1166,7 +1166,7 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
                     KotlinType expressionType = expression != null ? bindingContext.getType(expression) : null;
                     Type asmType =
                             expressionType != null ? typeMapper.mapType(expressionType) : typeMapper.mapType(getSuperClass(specifier));
-                    result.addField((KtDelegatedSuperTypeEntry) specifier, asmType, "$delegate_" + n);
+                    result.addField((KtDelegatedSuperTypeEntry) specifier, asmType, JvmAbi.DELEGATE_SUPER_FIELD_PREFIX + n);
                 }
                 n++;
             }

compiler/testData/codegen/box/delegation/delegationToVal.kt

@@ -24,16 +24,16 @@ class Test3() : Test2() {
 
 fun box(): String {
     try {
-        Test::class.java.getDeclaredField("\$delegate_0")
+        Test::class.java.getDeclaredField("\$\$delegate_0")
-        return "\$delegate_0 field generated for class Test but should not"
+        return "\$\$delegate_0 field generated for class Test but should not"
     }
     catch (e: NoSuchFieldException) {
         // ok
     }
 
     try {
-        Test2::class.java.getDeclaredField("\$delegate_0")
+        Test2::class.java.getDeclaredField("\$\$delegate_0")
-        return "\$delegate_0 field generated for class Test but should not"
+        return "\$\$delegate_0 field generated for class Test but should not"
     }
     catch (e: NoSuchFieldException) {
         // ok

compiler/testData/codegen/boxInline/anonymousObject/kt13374.kt

@@ -0,0 +1,37 @@
+// FILE: 1.kt
+
+package test
+
+interface IZ {
+    fun z()
+}
+
+interface IZZ : IZ {
+    fun zz()
+}
+
+inline fun implZZ(zImpl: IZ, crossinline zzImpl: () -> Unit): IZZ =
+        object : IZZ, IZ by zImpl {
+            override fun zz() = zzImpl()
+        }
+
+
+// FILE: 2.kt
+
+import test.*
+
+var result = "fail";
+
+object ZImpl : IZ {
+    override fun z() {
+        result = "O"
+    }
+}
+
+fun box(): String {
+    val zz = implZZ(ZImpl) { result += "K" }
+    zz.z()
+    zz.zz()
+    return result
+}
+

compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/delegationBy.kt

@@ -1,5 +1,5 @@
 interface Foo
 
 class <!CONFLICTING_JVM_DECLARATIONS!>Bar(f: Foo)<!> : Foo by f {
-    <!CONFLICTING_JVM_DECLARATIONS!>val `$delegate_0`: Foo?<!> = null
+    <!CONFLICTING_JVM_DECLARATIONS!>val `$$delegate_0`: Foo?<!> = null
 }

compiler/testData/diagnostics/tests/duplicateJvmSignature/specialNames/delegationBy.txt

@@ -2,7 +2,7 @@ package
 
 public final class Bar : Foo {
     public constructor Bar(/*0*/ f: Foo)
-    public final val `$delegate_0`: Foo? = null
+    public final val `$$delegate_0`: Foo? = null
     public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
     public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
     public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String

compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxInlineCodegenTestGenerated.java

@@ -133,6 +133,12 @@ public class BlackBoxInlineCodegenTestGenerated extends AbstractBlackBoxInlineCo
             doTest(fileName);
         }
 
+        @TestMetadata("kt13374.kt")
+        public void testKt13374() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/boxInline/anonymousObject/kt13374.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("kt6552.kt")
         public void testKt6552() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/boxInline/anonymousObject/kt6552.kt");

compiler/tests/org/jetbrains/kotlin/codegen/CompileKotlinAgainstInlineKotlinTestGenerated.java

@@ -133,6 +133,12 @@ public class CompileKotlinAgainstInlineKotlinTestGenerated extends AbstractCompi
             doTest(fileName);
         }
 
+        @TestMetadata("kt13374.kt")
+        public void testKt13374() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/boxInline/anonymousObject/kt13374.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("kt6552.kt")
         public void testKt6552() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/boxInline/anonymousObject/kt6552.kt");

core/descriptor.loader.java/src/org/jetbrains/kotlin/load/java/JvmAbi.java

@@ -43,6 +43,7 @@ public final class JvmAbi {
 
     public static final String DELEGATED_PROPERTY_NAME_SUFFIX = "$delegate";
     public static final String DELEGATED_PROPERTIES_ARRAY_NAME = "$$delegatedProperties";
+    public static final String DELEGATE_SUPER_FIELD_PREFIX = "$$delegate_";
     public static final String ANNOTATED_PROPERTY_METHOD_NAME_SUFFIX = "$annotations";
 
     public static final String INSTANCE_FIELD = "INSTANCE";