[PATCH] [libcxx] Allow use of ShTest in libc++ tests along with other changes.

[Jonathan Roelofs]

Regarding not.py: what did you try in terms of trying to import it from lit proper? (I need to figure out a solution to the same problem for loading the libcxx bits from libcxxabi's config).

Also, looks good on my end, though I'd like to hear from @danalbert on it. he's better at catching python-isms than I am.


http://reviews.llvm.org/D7073

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