add __name__ attr to method-wrapper

src/runtime/types.cpp

@@ -1595,6 +1595,12 @@ static Box* builtinFunctionOrMethodName(Box* b, void*) {
     return incref(func->name);
 }
 
+static Box* wrapperobjectName(Box* w, void*) {
+    assert(w->cls == wrapperobject_cls);
+    BoxedWrapperObject* wrapper_obj = static_cast<BoxedWrapperObject*>(w);
+    return boxString(wrapper_obj->descr->wrapper->name);
+}
+
 static Box* functionCode(Box* self, void*) {
     assert(self->cls == function_cls);
     BoxedFunction* func = static_cast<BoxedFunction*>(self);
@@ -4531,6 +4537,8 @@ void setupRuntime() {
     instancemethod_cls->giveAttr("im_class", new BoxedMemberDescriptor(BoxedMemberDescriptor::OBJECT,
                                                                        offsetof(BoxedInstanceMethod, im_class), true));
 
+    wrapperobject_cls->giveAttrDescriptor("__name__", wrapperobjectName, NULL);
+
     slice_cls->giveAttr(
         "__new__",
         new BoxedFunction(FunctionMetadata::create((void*)sliceNew, UNKNOWN, 4, false, false), { NULL, None }));

test/tests/wrapperdesc.py

@@ -5,4 +5,5 @@ print type(C).__str__ is object.__str__
 print type(None).__str__ is object.__str__
 print type(None).__str__ is None.__str__
 print type(None.__str__)
+print(None.__str__.__name__)
 print type(type(None).__str__.__get__(None, type(None)))