Add a missing DebugPromiseEvent in promise.js

DevTools expects 2 events on Promise.resolve()/Promise.reject():
creation & settlement. The first one was missing.

R=ulan@chromium.org, yangguo@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/792383003

Cr-Commit-Position: refs/heads/master@{#25778}

src/promise.js

@@ -67,6 +67,13 @@ var lastMicrotaskId = 0;
     return promise;
   }
 
+  function PromiseCreateAndSet(status, value) {
+    var promise = new $Promise(promiseRaw);
+    // If debug is active, notify about the newly created promise first.
+    if (DEBUG_IS_ACTIVE) PromiseSet(promise, 0, UNDEFINED);
+    return PromiseSet(promise, status, value);
+  }
+
   function PromiseInit(promise) {
     return PromiseSet(
         promise, 0, UNDEFINED, new InternalArray, new InternalArray)
@@ -197,7 +204,7 @@ var lastMicrotaskId = 0;
   function PromiseResolved(x) {
     if (this === $Promise) {
       // Optimized case, avoid extra closure.
-      return PromiseSet(new $Promise(promiseRaw), +1, x);
+      return PromiseCreateAndSet(+1, x);
     } else {
       return new this(function(resolve, reject) { resolve(x) });
     }
@@ -207,7 +214,7 @@ var lastMicrotaskId = 0;
     var promise;
     if (this === $Promise) {
       // Optimized case, avoid extra closure.
-      promise = PromiseSet(new $Promise(promiseRaw), -1, r);
+      promise = PromiseCreateAndSet(-1, r);
       // The debug event for this would always be an uncaught promise reject,
       // which is usually simply noise. Do not trigger that debug event.
       %PromiseRejectEvent(promise, r, false);