Ben Langmuir ca39214f4e Fix use-after-free and spurious error during module load ...

FileManager::invalidateCache is not safe to call when there may be
existing references to the file. What module load failure needs is
to refresh so stale stat() info isn't stored.

This may be the last user of invalidateCache; I'll take a look and
remove it if possible in a future commit.

This caused a use-after-free error as well as a spurious error message
that a module was "found in both 'X.pcm' and 'X.pcm'" in some cases.

llvm-svn: 209138

2014-05-19 16:13:45 +00:00

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