Pushed by andre.bargull@gmail.com: https://hg.mozilla.org/integration/autoland/rev/8e414319d2bf Part 1: Add pref for ArrayBuffer.prototype.transfer(). r=spidermonkey-reviewers,jandem https://hg.mozilla.org/integration/autoland/rev/5fc7d804af3e Part 2: Implement ArrayBuffer transfer proposal. r=spidermonkey-reviewers,jandem https://hg.mozilla.org/integration/autoland/rev/05d609026ed7 Part 3: Add additional ArrayBuffer transfer proposal tests. r=spidermonkey-reviewers,jandem https://hg.mozilla.org/integration/autoland/rev/41d2512a836c Part 4: Steal or realloc malloced buffers. r=spidermonkey-reviewers,jandem https://hg.mozilla.org/integration/autoland/rev/eb6b7b91f68c Part 5: Enable ArrayBuffer transfer tests from test262. r=spidermonkey-reviewers,sfink https://hg.mozilla.org/integration/autoland/rev/2ef473aa8aa4 Part 6: Update test262 for ArrayBuffer transfer tests. r=spidermonkey-reviewers,sfink