- Rename Promise.{resolved,rejected,deferred} to Promise.{resolve,reject,defer}
- Rename Promise.one to Promise.race
- Make all failures asynchronous, EXCEPT type errors for resolver
- Disallow non-construct call to Promise constructor
- Don't make combinators go through public this.defer

Also, don't bother using IsCallable.

R=dslomov@chromium.org, yhirano@chromium.org
BUG=

Review URL: https://codereview.chromium.org/99573002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18515 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

Based on prototype at

  https://github.com/rossberg-chromium/js-promise

which informed the latest spec draft version at

  https://github.com/domenic/promises-unwrapping/blob/master/README.md

Activated by --harmony-promises.

Feature complete with respect to the draft spec, plus the addition of .when and .deferred methods. Final naming and other possible deviations from the current draft will hopefully be resolved soon after the next TC39 meeting.

This CL also generalises the Object.observe delivery loop into a simplistic microtask loop. Currently, all observer events are delivered before invoking any promise handler in a single fixpoint iteration. It's not clear yet what the final semantics is supposed to be (should there be a global event ordering?), but it will probably require a more thorough event loop abstraction inside V8 once we get there.

R=dslomov@chromium.org, yhirano@chromium.org
BUG=

Review URL: https://codereview.chromium.org/64223010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18113 ce2b1a6d-e550-0410-aec6-3dcde31c8c00