Port 1821aff2

Original Commit Message:

    Since we can just use the lower bits, we can make the compressions no-ops.
    As a note, they still change the representation so that the machine graph
    verifier is happy.

    X64's version of: https://chromium-review.googlesource.com/c/v8/v8/+/1751722

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

Change-Id: I414fa30a17e5af4fa5b3e84b1b321d890431f27e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3100587Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#76349}