Support per-overload [RuntimeEnabled] extended attribute

Source/bindings/tests/idls/TestObject.idl

Index: Source/bindings/tests/idls/TestObject.idl
diff --git a/Source/bindings/tests/idls/TestObject.idl b/Source/bindings/tests/idls/TestObject.idl
index 9023e06b5b80716aeee46003463cbcb77a6c65a1..96690244dbc00742bee338d5db82b7ab0f7e83c1 100644
--- a/Source/bindings/tests/idls/TestObject.idl
+++ b/Source/bindings/tests/idls/TestObject.idl
@@ -478,6 +478,10 @@ interface TestObject {
     [NotEnumerable, ReadOnly] void notEnumerableReadOnlyVoidMethod();
     [RuntimeEnabled=FeatureName] void runtimeEnabledVoidMethod();
     [PerWorldBindings, RuntimeEnabled=FeatureName] void perWorldBindingsRuntimeEnabledVoidMethod();
+    [RuntimeEnabled=FeatureName] void runtimeEnabledOverloadedVoidMethod(DOMString stringArg);
+    [RuntimeEnabled=FeatureName] void runtimeEnabledOverloadedVoidMethod(long longArg);
+    [RuntimeEnabled=FeatureName] void partiallyRuntimeEnabledOverloadedVoidMethod(DOMString stringArg);
+    void partiallyRuntimeEnabledOverloadedVoidMethod(long longArg);
     [TreatReturnedNullStringAs=Null] DOMString treatReturnedNullStringAsNullStringMethod();
     [TreatReturnedNullStringAs=Undefined] DOMString treatReturnedNullStringAsUndefinedStringMethod();
     [TypeChecking=Interface] void typeCheckingInterfaceVoidMethodTestInterfaceEmptyArg(TestInterfaceEmpty testInterfaceEmptyArg);