Port 8c52f66f

Original Commit Message:

    Implement these 4 instructions for x64 Liftoff:
    - i64x2.widen_low_i32x4_s
    - i64x2.widen_high_i32x4_s
    - i64x2.widen_low_i32x4_u
    - i64x2.widen_high_i32x4_u

    We move the codegen for the *high* instructions into macro-assembler to
    allow sharing of the optimized code sequence between TurboFan and
    Liftoff.

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

Change-Id: I790860cbb0f9854c31959684712cde42254bde2b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2625878Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#72070}