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

Redux of: https://codereview.chromium.org/12990006/
Rolled back in: https://codereview.chromium.org/12567019/

This now seems "fixed" with the recent LLVM updates, I'll try more tests
on the bots and checkin if it indeed is.

This toolchain change should be spaced out from the others so we can
measure its perf impact.

R= dschuff@chromium.org

Review URL: https://codereview.chromium.org/13258002

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@11097 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

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