libc++: fix the traps numeric_limits test

We have a localmod in <limits> but not in the test. I'll update
libcxx_known_failures.txt with the LLVM 3.5 roll, and update COMPONENT_REVISIONS
at the same time.

R=dschuff@chromium.org
BUG= https://code.google.com/p/nativeclient/issues/detail?id=3930
TEST= ./pnacl/scripts/llvm-test.py --libcxx-tests

Review URL: https://codereview.chromium.org/734033004