The compiler is free to spill intermediate results of
compression|decompression on stack. With our scheme, the only
intermediate result can be a truncated but non-shifted pointer.

Bug: chromium:1325007
Change-Id: Ibec1f80b9d214d1c1e7cb8368c094fc262237642
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3793615Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82236}