Test and Instruction Selection changes are not included and must
be added when opcode is added to SIMD proposal.

Bug: v8:10583
Change-Id: I140d3477d4f3281b24974090c25807eb86af757f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2261162
Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#68566}