Re-enable optimization for angle_perftests. This CL restricts the workaround to the trace perf tests. These trace tests are too big to optimize. Also includes a fix for a 32-bit Windows warnings. We'll need to update the build file to remove a suppression once the traces are updated. Bug: angleproject:3630 Change-Id: Id13a0050fc2a645aa572b8c9079908023b232f28 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2103084 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com> Reviewed-by: Yuly Novikov <ynovikov@chromium.org>