-- Removes remaning debug from promise.js and moves it to c++
-- Changes debug_id to be a smi in PromiseReactionJobInfo and
   PromiseResolveThenableJobInfo.
-- Changes debug_name to be a smi in PromiseReactionJobInfo and
   PromiseResolveThenableJobInfo.
-- Adds PromiseDebugActionName and PromiseDebugActionType enums
-- Adds PromiseDebugActionNameToString and
   PromiseDebugActionTypeToString helper methods
-- Changes variable `status` to be int in runtime functions.
-- Changes debug_id to start from 1, not 0 for easier bookkeeping.

BUG=v8:5343

Review-Url: https://codereview.chromium.org/2606093002
Cr-Commit-Position: refs/heads/master@{#42052}