Andrew Morrow: The attached patch updates the lit.config for libc++ unit tests so that the valgrind configuration passed to lit.py is used to run .pass tests.
Andrew Morrow: The attached patch updates the lit.config for libc++ unit tests so
that the valgrind configuration passed to lit.py is used to run .pass
tests.

git-svn-id: 756ef344af921d95d562d9e9f9389127a89a6314@161193 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx,llvm-mirror/libcxx