Suppress allocation warnings for tests that induce them intentionally

Change-Id: I918b4b28753f71a15963d2c762f93c1ae1de7836
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/259173
Commit-Queue: Chris Dalton <csmartdalton@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
5 files changed