[PATCH] Change the LLVM global lock to use RAII semantics

[Zachary Turner]

Hi chandlerc,

This patch gets rid of llvm_acquire_global_lock and llvm_release_global_lock and instead simply allows users to access the mutex object itself, enabling RAII semantics.

http://reviews.llvm.org/D4142

Files:
  include/llvm/Support/Mutex.h
  include/llvm/Support/Threading.h
  lib/Support/ManagedStatic.cpp
  lib/Support/Threading.cpp
  lib/Support/Timer.cpp
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