[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

> On Oct 30, 2014, at 2:54 PM, Reid Kleckner <rnk at google.com> wrote:
> 
> lgtm
> 
> Thanks, sorry for the runaround.
> 
> http://reviews.llvm.org/D5922
> 
>