The subject test was not actually running. This patch adds the
relevant suffix to the list of lit case filename extensions for the
enclosing directory.
Minor adjustments are also made to deal with bit rot.
Reviewed By: daltenty
Differential Revision: https://reviews.llvm.org/D87122
Make sure all print statements are compatible with Python 2 and Python3 using
the `from __future__ import print_function` statement.
Differential Revision: https://reviews.llvm.org/D56249
llvm-svn: 350307
Hubert Tong