Bug 909743 - Save live ForkJoinSlice register in the fast string concat stub. (r=jandem)
Bug 925305 - Use ScratchFloatReg when converting float32->double for callVM. (r=sstangl)
Bug 924757 - Remove PJS-tagged callee tokens. (r=jandem)
Bug 918584 - Part 1: Gently refactor SetPropertyIC. (r=jandem)
Bug 918584 - Part 2: Gently refactor SetElementIC. (r=jandem)
Bug 918584 - Part 3: Add SetPropertyParIC. (r=jandem)
Bug 918584 - Part 4: Add SetElementParIC. (r=jandem)
Bug 921325 - Return bool from PJS VM functions and use the fatal bit on ForkJoinSlice to signal fatal vs retry. (r=nmatsakis)