Invoke top level function with default argument using src class

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

@@ -581,7 +581,7 @@ public class FunctionCodegen extends GenerationStateAware {
 
         JvmClassName ownerInternalName;
         if (contextClass instanceof NamespaceDescriptor) {
-            ownerInternalName = NamespaceCodegen.getJVMClassNameForKotlinNs(DescriptorUtils.getFQName(contextClass).toSafe());
+            ownerInternalName = state.getTypeMapper().getOwner(functionDescriptor, kind, true);
         }
         else {
             ownerInternalName = JvmClassName.byType(state.getTypeMapper()

compiler/testData/codegen/bytecodeText/topLevelFunWithDefaultArgs.kt

@@ -0,0 +1,4 @@
+fun foo(a: Int = 1) {}
+
+//0 _DefaultPackage.foo
+//3 INVOKESTATIC _DefaultPackage\$src\$

compiler/tests/org/jetbrains/jet/codegen/BytecodeTextTestGenerated.java

@@ -77,6 +77,11 @@ public class BytecodeTextTestGenerated extends AbstractBytecodeTextTest {
         doTest("compiler/testData/codegen/bytecodeText/privateDefaultArgs.kt");
     }
     
+    @TestMetadata("topLevelFunWithDefaultArgs.kt")
+    public void testTopLevelFunWithDefaultArgs() throws Exception {
+        doTest("compiler/testData/codegen/bytecodeText/topLevelFunWithDefaultArgs.kt");
+    }
+    
     @TestMetadata("compiler/testData/codegen/bytecodeText/statements")
     public static class Statements extends AbstractBytecodeTextTest {
         public void testAllFilesPresentInStatements() throws Exception {