KT-413 proper visibility of this$0

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

@@ -140,7 +140,7 @@ public class ClosureCodegen extends ObjectOrClosureCodegen {
         final Method constructor = generateConstructor(funClass, fun);
 
         if (captureThis) {
-            cv.newField(fun, 0, "this$0", enclosingType.getDescriptor(), null, null);
+            cv.newField(fun, ACC_FINAL, "this$0", enclosingType.getDescriptor(), null, null);
         }
 
         if(isConst()) {

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

@@ -593,7 +593,7 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
             final Type type = typeMapper.mapType(outerDescriptor.getDefaultType(), OwnerKind.IMPLEMENTATION);
             String interfaceDesc = type.getDescriptor();
             final String fieldName = "this$0";
-            v.newField(myClass, ACC_PRIVATE | ACC_FINAL, fieldName, interfaceDesc, null, null);
+            v.newField(myClass, ACC_FINAL, fieldName, interfaceDesc, null, null);
             iv.load(0, classType);
             iv.load(frameMap.getOuterThisIndex(), type);
             iv.putfield(classname, fieldName, interfaceDesc);

compiler/testData/codegen/regressions/kt1413.kt

@@ -0,0 +1,26 @@
+package t
+
+trait I{
+    fun f()
+}
+
+class Test{
+    fun foo(){
+        val i : I = object : I {
+            override fun f() {
+                fun local(){
+                    bar()
+                }
+                 local()
+            }
+        }
+        i.f()
+    }
+
+    fun bar(){}
+}
+
+fun box() : String {
+    Test().foo()
+    return "OK"
+}

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

@@ -86,6 +86,10 @@ public class FunctionGenTest extends CodegenTestCase {
         blackBoxFile("regressions/kt873.kt");
     }
 
+    public void testKt1413 () {
+        blackBoxFile("regressions/kt1413.kt");
+    }
+
     public void testKt1199 () {
         blackBoxFile("regressions/kt1199.kt");
     }