[builtins] CSA version of Set.prototype.has.

Change-Id: Ie59254ff0790a2db70c1f620f287f8de6387ad23
Bug: v8:5717
Reviewed-on: https://chromium-review.googlesource.com/573543Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46691}