This adds feedback collection to count the number of executions of
call_direct instructions in Liftoff code. The purpose is better
inlining decisions in Turbofan, which are enabled by having call
count information for all kinds of calls.
The new feature is gated on --wasm-speculative-inlining. While
direct calls don't need to speculate about their target, the whole
feedback collection infrastructure depends on that flag.

Bug: v8:12166
Change-Id: Ie24a988fcea631f370188dc21e60a5fac923dd3d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3571807Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79846}