Rafael Espindola 0a69bac396 Check for $PWD in llvm::sys::current_path. ...

Some users (clang, libTooling) require this. After this patch we can remove
the calls to getenv("PWD") from clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188125 91177308-0d34-0410-b5e6-96231b3b80d8

2013-08-10 00:50:57 +00:00

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