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								 Douglas Gregor | 95fa4005f5 | Move Clang's file-level locking facility over to LLVM's support library, since it doesn't really have anything to do with Clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149203 91177308-0d34-0410-b5e6-96231b3b80d8 | 2012-01-29 20:15:10 +00:00 |  |