toolchain-utils: Update compiler wrapper to disable warning.

This CL updates toolchain-utils to match recent compiler wrapper
changes in sys-devel/llvm/files.  It's purpose is to disable the
new warning -Wcompound-token-split-by-space.

Also update golden tests appropriately.

BUG=chromium:1130080
TEST=Previous CL already tessted/committed.

Change-Id: I261250dc7ed6f1be7c3aa4652d793c924e1dc18d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/2423619
Commit-Queue: Caroline Tice <cmtice@chromium.org>
Commit-Queue: George Burgess <gbiv@chromium.org>
Tested-by: Caroline Tice <cmtice@chromium.org>
Auto-Submit: Caroline Tice <cmtice@chromium.org>
Reviewed-by: George Burgess <gbiv@chromium.org>
7 files changed