[PATCH] Removing the static initializer in ManagedStatic.cpp by using llvm_call_once to initialize the ManagedStatic mutex.

[Chris Bieneman]

I’ve landed the change in r220932. I will watch the bots to make sure everything goes smoothly.

Thanks everyone for all the help on this.
-Chris

REPOSITORY
  rL LLVM

http://reviews.llvm.org/D5922