Light Classes: Fix computation of base type in anonymous light class

compiler/light-classes/src/org/jetbrains/kotlin/asJava/KotlinLightClassForAnonymousDeclaration.java

@@ -44,12 +44,10 @@ class KotlinLightClassForAnonymousDeclaration extends KotlinLightClassForExplici
     @NotNull
     @Override
     public PsiJavaCodeReferenceElement getBaseClassReference() {
-        Project project = classOrObject.getProject();
+        return JavaPsiFacade.getElementFactory(classOrObject.getProject()).createReferenceElementByType(getBaseClassType());
-        return JavaPsiFacade.getElementFactory(project).createReferenceElementByFQClassName(
-                getFirstSupertypeFQName(), GlobalSearchScope.allScope(project)
-        );
     }
 
+    @NotNull
     private String getFirstSupertypeFQName() {
         ClassDescriptor descriptor = getDescriptor();
         if (descriptor == null) return CommonClassNames.JAVA_LANG_OBJECT;
@@ -77,7 +75,20 @@ class KotlinLightClassForAnonymousDeclaration extends KotlinLightClassForExplici
         if (cachedBaseType != null) type = cachedBaseType.get();
         if (type != null && type.isValid()) return type;
 
-        type = JavaPsiFacade.getInstance(classOrObject.getProject()).getElementFactory().createType(getBaseClassReference());
+        String firstSupertypeFQName = getFirstSupertypeFQName();
+        for (PsiClassType superType : getSuperTypes()) {
+            PsiClass superClass = superType.resolve();
+            if (superClass != null && firstSupertypeFQName.equals(superClass.getQualifiedName())) {
+                type = superType;
+                break;
+            }
+        }
+
+        if (type == null) {
+            Project project = classOrObject.getProject();
+            type = PsiType.getJavaLangObject(PsiManager.getInstance(project), GlobalSearchScope.allScope(project));
+        }
+
         cachedBaseType = new SoftReference<PsiClassType>(type);
         return type;
     }

idea/testData/refactoring/changeSignature/OverrideInAnonymousObjectWithTypeParametersAfter.kt

@@ -0,0 +1,13 @@
+interface X
+
+interface A<D> {
+    public fun <caret>bar(receiverTypes: Collection<X>): Collection<D>
+}
+
+fun foo<D>(): A<D> {
+    return object: A<D> {
+        override fun bar(receiverTypes: Collection<X>): Collection<D> {
+            throw UnsupportedOperationException()
+        }
+    }
+}

idea/testData/refactoring/changeSignature/OverrideInAnonymousObjectWithTypeParametersBefore.kt

@@ -0,0 +1,13 @@
+interface X
+
+interface A<D> {
+    public fun <caret>foo(receiverTypes: Collection<X>): Collection<D>
+}
+
+fun foo<D>(): A<D> {
+    return object: A<D> {
+        override fun foo(receiverTypes: Collection<X>): Collection<D> {
+            throw UnsupportedOperationException()
+        }
+    }
+}

idea/tests/org/jetbrains/kotlin/idea/refactoring/changeSignature/JetChangeSignatureTest.java

@@ -1300,6 +1300,12 @@ public class JetChangeSignatureTest extends KotlinCodeInsightTestCase {
         doJavaTest(new JavaRefactoringProvider());
     }
 
+    public void testOverrideInAnonymousObjectWithTypeParameters() throws Exception {
+        JetChangeInfo changeInfo = getChangeInfo();
+        changeInfo.setNewName("bar");
+        doTest(changeInfo);
+    }
+
     private List<Editor> editors = null;
 
     private static final String[] EXTENSIONS = {".kt", ".java"};