Port dcf467a8

Original Commit Message:

    - Use kNoBuiltinId instead of literal -1.
    - Remove support for non-embedded builtins.
    - Update Code object layout comment.

R=jgruber@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N

Change-Id: Ie0101d883c8116a6076a7b9ef8b82dbcd1960dbf
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2483628Reviewed-by: Junliang Yan <junyan@redhat.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#70614}