Delegated members should not be synthetic

Otherwise they are invisible to Java code

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

@@ -737,7 +737,7 @@ public class FunctionCodegen extends ParentCodegenAwareImpl {
         Method overriddenMethod = jvmOverriddenMethodSignature.getAsmMethod();
         Method delegateMethod = jvmDelegateMethodSignature.getAsmMethod();
 
-        int flags = ACC_PUBLIC | ACC_SYNTHETIC; // TODO.
+        int flags = ACC_PUBLIC;
 
         MethodVisitor mv = v.newMethod(null, flags, delegateMethod.getName(), delegateMethod.getDescriptor(), null, null);
         if (state.getClassBuilderMode() != ClassBuilderMode.FULL) return;

compiler/testData/compileJavaAgainstKotlin/method/Delegation.java

@@ -0,0 +1,7 @@
+class JavaClass {
+    public static void main(String[] args) {
+        Test test = new Test();
+        test.foo();
+        test.getBar();
+    }
+}

compiler/testData/compileJavaAgainstKotlin/method/Delegation.kt

@@ -0,0 +1,11 @@
+trait Trait {
+    fun foo()
+    val bar: Int
+}
+
+class Impl: Trait {
+    override fun foo() {}
+    override val bar = 1
+}
+
+class Test : Trait by Impl()

compiler/tests/org/jetbrains/jet/jvm/compiler/CompileJavaAgainstKotlinTestGenerated.java

@@ -112,6 +112,11 @@ public class CompileJavaAgainstKotlinTestGenerated extends AbstractCompileJavaAg
             doTest("compiler/testData/compileJavaAgainstKotlin/method/ArrayOfIntegerArray.kt");
         }
         
+        @TestMetadata("Delegation.kt")
+        public void testDelegation() throws Exception {
+            doTest("compiler/testData/compileJavaAgainstKotlin/method/Delegation.kt");
+        }
+        
         @TestMetadata("GenericArray.kt")
         public void testGenericArray() throws Exception {
             doTest("compiler/testData/compileJavaAgainstKotlin/method/GenericArray.kt");