Fix unjustified descriptorToDeclaration in bridge codegen

Delegated and synthesized members don't usually have a declaration as well as
fake overrides

compiler/backend/src/org/jetbrains/jet/codegen/FunctionCodegen.java

@@ -66,6 +66,7 @@ import static org.jetbrains.jet.codegen.AsmUtil.*;
 import static org.jetbrains.jet.codegen.JvmSerializationBindings.*;
 import static org.jetbrains.jet.codegen.binding.CodegenBinding.asmTypeForAnonymousClass;
 import static org.jetbrains.jet.codegen.binding.CodegenBinding.isLocalNamedFun;
+import static org.jetbrains.jet.lang.descriptors.CallableMemberDescriptor.Kind.DECLARATION;
 import static org.jetbrains.jet.lang.resolve.BindingContextUtils.callableDescriptorToDeclaration;
 import static org.jetbrains.jet.lang.resolve.BindingContextUtils.descriptorToDeclaration;
 import static org.jetbrains.jet.lang.resolve.DescriptorUtils.isFunctionLiteral;
@@ -440,9 +441,7 @@ public class FunctionCodegen extends ParentCodegenAwareImpl {
         );
 
         if (!bridgesToGenerate.isEmpty()) {
-            PsiElement origin = descriptor.getKind().isReal()
-                                ? callableDescriptorToDeclaration(bindingContext, descriptor)
-                                : null;
+            PsiElement origin = descriptor.getKind() == DECLARATION ? callableDescriptorToDeclaration(bindingContext, descriptor) : null;
             for (Bridge<Method> bridge : bridgesToGenerate) {
                 generateBridge(origin, bridge.getFrom(), bridge.getTo());
             }

compiler/testData/codegen/boxWithJava/delegation/delegationAndInheritanceFromJava.java

@@ -0,0 +1,7 @@
+import java.util.Set;
+
+public class delegationAndInheritanceFromJava {
+    public interface A extends Set<String> {}
+
+    public interface B extends Set<String> {}
+}

compiler/testData/codegen/boxWithJava/delegation/delegationAndInheritanceFromJava.kt

@@ -0,0 +1,6 @@
+import delegationAndInheritanceFromJava.*
+import java.util.HashSet
+
+class Impl(b: B): A, B by b
+
+fun box() = "OK"

compiler/tests/org/jetbrains/jet/codegen/generated/BlackBoxWithJavaCodegenTestGenerated.java

@@ -31,7 +31,7 @@ import org.jetbrains.jet.codegen.generated.AbstractBlackBoxCodegenTest;
 /** This class is generated by {@link org.jetbrains.jet.generators.tests.TestsPackage}. DO NOT MODIFY MANUALLY */
 @SuppressWarnings("all")
 @TestMetadata("compiler/testData/codegen/boxWithJava")
-@InnerTestClasses({BlackBoxWithJavaCodegenTestGenerated.Annotations.class, BlackBoxWithJavaCodegenTestGenerated.CallableReference.class, BlackBoxWithJavaCodegenTestGenerated.Constructor.class, BlackBoxWithJavaCodegenTestGenerated.Enum.class, BlackBoxWithJavaCodegenTestGenerated.Functions.class, BlackBoxWithJavaCodegenTestGenerated.InnerClass.class, BlackBoxWithJavaCodegenTestGenerated.Property.class, BlackBoxWithJavaCodegenTestGenerated.Sam.class, BlackBoxWithJavaCodegenTestGenerated.StaticFun.class, BlackBoxWithJavaCodegenTestGenerated.Visibility.class})
+@InnerTestClasses({BlackBoxWithJavaCodegenTestGenerated.Annotations.class, BlackBoxWithJavaCodegenTestGenerated.CallableReference.class, BlackBoxWithJavaCodegenTestGenerated.Constructor.class, BlackBoxWithJavaCodegenTestGenerated.Delegation.class, BlackBoxWithJavaCodegenTestGenerated.Enum.class, BlackBoxWithJavaCodegenTestGenerated.Functions.class, BlackBoxWithJavaCodegenTestGenerated.InnerClass.class, BlackBoxWithJavaCodegenTestGenerated.Property.class, BlackBoxWithJavaCodegenTestGenerated.Sam.class, BlackBoxWithJavaCodegenTestGenerated.StaticFun.class, BlackBoxWithJavaCodegenTestGenerated.Visibility.class})
 public class BlackBoxWithJavaCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
     public void testAllFilesPresentInBoxWithJava() throws Exception {
         JetTestUtils.assertAllTestsPresentByMetadata(this.getClass(), "org.jetbrains.jet.generators.tests.TestsPackage", new File("compiler/testData/codegen/boxWithJava"), Pattern.compile("^(.+)\\.kt$"), true);
@@ -101,6 +101,19 @@ public class BlackBoxWithJavaCodegenTestGenerated extends AbstractBlackBoxCodege
         
     }
     
+    @TestMetadata("compiler/testData/codegen/boxWithJava/delegation")
+    public static class Delegation extends AbstractBlackBoxCodegenTest {
+        public void testAllFilesPresentInDelegation() throws Exception {
+            JetTestUtils.assertAllTestsPresentByMetadata(this.getClass(), "org.jetbrains.jet.generators.tests.TestsPackage", new File("compiler/testData/codegen/boxWithJava/delegation"), Pattern.compile("^(.+)\\.kt$"), true);
+        }
+        
+        @TestMetadata("delegationAndInheritanceFromJava.kt")
+        public void testDelegationAndInheritanceFromJava() throws Exception {
+            doTestWithJava("compiler/testData/codegen/boxWithJava/delegation/delegationAndInheritanceFromJava.kt");
+        }
+        
+    }
+    
     @TestMetadata("compiler/testData/codegen/boxWithJava/enum")
     public static class Enum extends AbstractBlackBoxCodegenTest {
         public void testAllFilesPresentInEnum() throws Exception {
@@ -566,6 +579,7 @@ public class BlackBoxWithJavaCodegenTestGenerated extends AbstractBlackBoxCodege
         suite.addTestSuite(Annotations.class);
         suite.addTestSuite(CallableReference.class);
         suite.addTestSuite(Constructor.class);
+        suite.addTestSuite(Delegation.class);
         suite.addTestSuite(Enum.class);
         suite.addTestSuite(Functions.class);
         suite.addTestSuite(InnerClass.class);