[promises] Move PromiseResolveThenableJob to c++

src/runtime/runtime-internal.cc

Index: src/runtime/runtime-internal.cc
diff --git a/src/runtime/runtime-internal.cc b/src/runtime/runtime-internal.cc
index db2aa01ea8db022d2c35bc7259783dc78d08eec2..2d56e38a4da26d5facba74a27e542a0a4efbaffe 100644
--- a/src/runtime/runtime-internal.cc
+++ b/src/runtime/runtime-internal.cc
@@ -555,6 +555,20 @@ RUNTIME_FUNCTION(Runtime_GetAndResetRuntimeCallStats) {
   }
 }
 
+RUNTIME_FUNCTION(Runtime_EnqueuePromiseResolveThenableJob) {
+  HandleScope scope(isolate);
+  DCHECK(args.length() == 5);
+  CONVERT_ARG_HANDLE_CHECKED(JSObject, promise, 0);
+  CONVERT_ARG_HANDLE_CHECKED(JSObject, resolution, 1);

[adamk, 2016/09/06 21:04:57]

The struct says these are just Objects; which is it?

[gsathya, 2016/09/07 04:45:30]

Updated the struct to be more specific.

+  CONVERT_ARG_HANDLE_CHECKED(JSFunction, then, 2);
+  CONVERT_ARG_HANDLE_CHECKED(JSFunction, resolve, 3);
+  CONVERT_ARG_HANDLE_CHECKED(JSFunction, reject, 4);
+  Handle<PromiseContainer> container = isolate->factory()->NewPromiseContainer(
+      promise, resolution, then, resolve, reject);
+  isolate->EnqueueMicrotask(container);
+  return isolate->heap()->undefined_value();
+}
+
 RUNTIME_FUNCTION(Runtime_EnqueueMicrotask) {
   HandleScope scope(isolate);
   DCHECK(args.length() == 1);