Eric Fiselier 9ef5d45b2c Address danalbert's post-commit review comments on D7019 and small fixes.
This patch addresses some comments on http://reviews.llvm.org/D7019.

- Move compiler.py to test/libcxx from test/libcxx/test.
- Make CXXCompiler.target None by default.
- Use `{}` instead of `dict()` to initialize an empty dict.
- Pass the -fsanitize options to both the compile and link commands.


git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@226575 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-20 16:14:18 +00:00
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