[promises] Remove deferred object

src/js/promise.js

Index: src/js/promise.js
diff --git a/src/js/promise.js b/src/js/promise.js
index 7cd789295644f8be560f8c85346fd9c279720024..4ff871503d7b6d26cabb2243d167f46ec2fdd56f 100644
--- a/src/js/promise.js
+++ b/src/js/promise.js
@@ -75,8 +75,8 @@ SET_PRIVATE(PromiseIdRejectHandler, promiseForwardingHandlerSymbol, true);
 // For bootstrapper.
 
 // This is used by utils and v8-extras.
-function PromiseCreate() {
-  return %promise_internal_constructor(UNDEFINED);
+function PromiseCreate(parent) {
+  return %promise_internal_constructor(parent);
 }
 
 // Only used by async-await.js
@@ -89,17 +89,6 @@ function DoRejectPromise(promise, reason) {
   %PromiseReject(promise, reason, true);
 }
 
-// The resultCapability.promise is only ever fulfilled internally,
-// so we don't need the closures to protect against accidentally
-// calling them multiple times.
-function CreateInternalPromiseCapability(parent) {
-  return {
-    promise: %promise_internal_constructor(parent),
-    resolve: UNDEFINED,
-    reject: UNDEFINED
-  };
-}
-
 // ES#sec-newpromisecapability
 // NewPromiseCapability ( C )
 function NewPromiseCapability(C, debugEvent) {
@@ -288,7 +277,7 @@ function PromiseHasUserDefinedRejectHandlerCheck(handler, deferred) {
   //  - Promise.all/Promise.race forwarding to a throwaway Promise, which
   //    has a dependency edge to the generated outer Promise.
   if (GET_PRIVATE(handler, promiseForwardingHandlerSymbol)) {
-    return PromiseHasUserDefinedRejectHandlerRecursive(deferred.promise);
+    return PromiseHasUserDefinedRejectHandlerRecursive(deferred);
   }
 
   // Otherwise, this is a real reject handler for the Promise
@@ -371,7 +360,6 @@ utils.InstallGetter(GlobalPromise, speciesSymbol, PromiseSpecies);
   "promise_internal_reject", RejectPromise,
   "promise_debug_get_info", PromiseDebugGetInfo,
   "new_promise_capability", NewPromiseCapability,
-  "internal_promise_capability", CreateInternalPromiseCapability,
   "promise_id_resolve_handler", PromiseIdResolveHandler,
   "promise_id_reject_handler", PromiseIdRejectHandler
 ]);
@@ -389,7 +377,6 @@ utils.Export(function(to) {
   to.PromiseCreate = PromiseCreate;
   to.PromiseThen = PromiseThen;
 
-  to.CreateInternalPromiseCapability = CreateInternalPromiseCapability;
   to.RejectPromise = RejectPromise;
 });