Disable assertions in the release sandboxed llc.nexe.
Disable assertions in the release sandboxed llc.nexe.

This is as discussed in Jim's https://codereview.chromium.org/12623030/

I measured size before/after on the ARM llc.nexe, it went from 11MB to
8.6MB. The main contribution to size was the pretty demangled function
names as well as the debug strings, which were ~1MB. All functions in
the LLVM namespace lost ~700KB, and anonymous namespace ~400KB.

On ARM the spec2k pexe->nexe translation time is 92% of the original. As
a sanity check: the spec2k train runtime is the same, and so is the
spec2k nexe size.

BUG= https://code.google.com/p/nativeclient/issues/detail?id=3319
R= stichnot@chromium.org, eliben@chromium.org, dschuff@chromium.org, jvoung@chromium.org

Review URL: https://codereview.chromium.org/12990006

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@11058 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client