Fix sceKernelReferMutexStatus().
Implement sceKernelReferLwMutexStatus() and ByID().
Update tests.
Merge pull request #794 from unknownbrackets/scheduling

Implement sceKernelRefer*MutexStatus*()
Fix Comp_ShiftType not using ROR.

Untested but looks right?  Reported by @xsacha.
Merge pull request #795 from unknownbrackets/armjit-minor

Fix Comp_ShiftType not using ROR in armjit