Decompressing with Any just chooses one of the decompressions (Signed or
Pointer). Since we already know which decompression it is going to choose,
we save ourselves a whole bunch of instructions by just skipping that.

Cq-Include-Trybots: luci.v8.try:v8_linux64_pointer_compression_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_arm64_pointer_compression_rel_ng
Bug: v8:7703
Change-Id: I0173931536e7ba83fa3572ceb50b176409f0b6c5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691916Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62602}