Add GetProperty/GetElement to JSReceiver and use it where possible

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index 0a82bd42af0f8b466cbf37b863c1649c230eaeb8..796fb08c594034d57c1cd54aa6ef1c3873f07af8 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -901,7 +901,7 @@ Handle<JSGlobalObject> Genesis::CreateNewGlobals(
 #ifdef DEBUG
     LookupIterator it(prototype, factory()->constructor_string(),
                       LookupIterator::OWN_SKIP_INTERCEPTOR);
-    Handle<Object> value = JSReceiver::GetProperty(&it).ToHandleChecked();
+    Handle<Object> value = Object::GetProperty(&it).ToHandleChecked();
     DCHECK(it.IsFound());
     DCHECK_EQ(*isolate()->object_function(), *value);
 #endif
@@ -1983,7 +1983,7 @@ static Handle<JSObject> ResolveBuiltinIdHolder(Handle<Context> native_context,
   Handle<String> property_string = factory->InternalizeUtf8String(property);
   DCHECK(!property_string.is_null());
   Handle<JSObject> object = Handle<JSObject>::cast(
-      Object::GetProperty(global, property_string).ToHandleChecked());
+      JSReceiver::GetProperty(global, property_string).ToHandleChecked());
   if (strcmp("prototype", inner) == 0) {
     Handle<JSFunction> function = Handle<JSFunction>::cast(object);
     return Handle<JSObject>(JSObject::cast(function->prototype()));
@@ -1991,7 +1991,7 @@ static Handle<JSObject> ResolveBuiltinIdHolder(Handle<Context> native_context,
   Handle<String> inner_string = factory->InternalizeUtf8String(inner);
   DCHECK(!inner_string.is_null());
   Handle<Object> value =
-      Object::GetProperty(object, inner_string).ToHandleChecked();
+      JSReceiver::GetProperty(object, inner_string).ToHandleChecked();
   return Handle<JSObject>::cast(value);
 }
 
@@ -2737,7 +2737,7 @@ bool Genesis::InstallNatives(GlobalContextType context_type) {
   {
     Handle<String> key = factory()->Promise_string();
     Handle<JSFunction> function = Handle<JSFunction>::cast(
-        Object::GetProperty(handle(native_context()->global_object()), key)
+        JSReceiver::GetProperty(handle(native_context()->global_object()), key)
             .ToHandleChecked());
     JSFunction::EnsureHasInitialMap(function);
     function->initial_map()->set_instance_type(JS_PROMISE_TYPE);
@@ -3036,7 +3036,7 @@ static void InstallBuiltinFunctionId(Handle<JSObject> holder,
                                      BuiltinFunctionId id) {
   Isolate* isolate = holder->GetIsolate();
   Handle<Object> function_object =
-      Object::GetProperty(isolate, holder, function_name).ToHandleChecked();
+      JSReceiver::GetProperty(isolate, holder, function_name).ToHandleChecked();
   Handle<JSFunction> function = Handle<JSFunction>::cast(function_object);
   function->shared()->set_builtin_function_id(id);
 }