[PATCH] [libcxx] Cleanup the cleanup of temporary files.

[Dan Albert]

================
Comment at: test/lit.cfg:23
@@ +22,3 @@
+    """
+    GuardedTempFilename - A utility class that allows temporary files to be used
+    in a python 'with' statement.
----------------
Doesn't [[ https://docs.python.org/2/library/contextlib.html | contextlib ]] cover this?

http://reviews.llvm.org/D6739

EMAIL PREFERENCES
  http://reviews.llvm.org/settings/panel/emailpreferences/