__declspec(nocf) syntax was added in https://reviews.llvm.org/D72167
and annotates that checks should not be added on indirect calls
within that function.

BUG=chromium:584575

Change-Id: Ib2e2d2a827186a9c1fd3de15356b2b04d6a69e49
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2270707Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Will Harris <wfh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68590}