Bug 1029653 - Remove bogus heavyweight assertion in computeScopeChain. (r=jandem)
Bug 1029653 - Fix ForkJoinContext::isMainThread. (r=lth)
Bug 1029653 - Fix subtle bug in computing the main thread stack limit in PJS. (r=lth)
Bug 1029653 - Delete accidentally committed debug printf. (r=me)
Bug 1029440 - Preserve all JIT code when there's recent parallel activity. (r=terrence)