This CL also adds types to a user and three builtins that make use
of CreateArrayIterator.

R=petermarshall@chromium.org

Bug: v8:7570
Change-Id: I96b647a9a57e825db717b40ecec2340b0a3d367d
Reviewed-on: https://chromium-review.googlesource.com/1032779
Commit-Queue: Simon Zünd <szuend@google.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52904}