Bug 831754 part 1 - Add patchable call instruction, ARM part. r=mjrosenb a=nonlibxul
Bug 831754 part 2 - Add patchable call instruction, x86/x64 part. r=dvander a=nonlibxul
Bug 832373 part 2 - Refactor initExecuteFrame to use AbstractFramePtr. r=luke a=nonlibxul