These operations don't need to access per-native context data and
cannot throw exceptions.

Bug: v8:5268, v8:5269
Change-Id: Id7fdbee2b39f96717de83b3cef5ab789424f8338
Reviewed-on: https://chromium-review.googlesource.com/779142
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50639}