[PATCH] Kill the LLVM global lock

[Reid Kleckner]

lgtm

================
Comment at: lib/Support/ManagedStatic.cpp:32
@@ +31,3 @@
+// static initialization, so roll our own.
+static std::recursive_mutex& GetManagedStaticMutex() {
+  std::call_once(MutexInitializationFlag,
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The new function naming convention is camelCase over StudlyCaps:
http://llvm.org/docs/CodingStandards.html#name-types-functions-variables-and-enumerators-properly

The confusion is understandable, because the existing code is very inconsistent.

http://reviews.llvm.org/D4142