[builtins] Make sure to perform ToPrimitive(key, hint string) in hasOwnProperty even if the receiver is a smi.

Bug: chromium:707580
Change-Id: I38f8740ac0df5d5e4e99808e4fa20bae88a23a11
Reviewed-on: https://chromium-review.googlesource.com/528077Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45790}