This reduces the call depth of both of these two hotspots.
Reduces time spent in the CPU overhead benchmarks by about 10%.

Bug: angleproject:2966
Change-Id: I5052e56dcc1dfb80274326a7f0891fafba7d6655
Reviewed-on: https://chromium-review.googlesource.com/c/1392389
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Markus Tavenrath <matavenrath@nvidia.com>