[PATCH] [MSan][Clang][MIPS] Enabled memory, dataflow and thread options for MIPS platform

[Evgeniy Stepanov]

I don't think 100% passing tests should be a requirement for this change to go in. On the opposite, driver support has value  even if the tool barely works, and is a prerequisite for tests passing.

http://reviews.llvm.org/D6147