Bug 1090957 - Implement atomicFetch and compareExchange methods for MIPS. r=rankov
Bug 1090952 - Implement missing functions for nursery pointers for MIPS (movePtr(ImmMaybeNurseryPtr imm, Register dest) and branchPtr(Condition cond, Address addr, ImmMaybeNurseryPtr ptr, Label *label)). r=rankov
Bug 1091828 - Fix MacroAssemblerMIPS::ma_callIonHalfPush(Label *label). r=rankov