The wasm-compile fuzzer sometimes needs to generate a boolean flag from
the input bytes. Since the general {DataRange::get} method results in
undefined behaviour if instantiated with the {bool} type, we are getting
an 8-bit value instead and looking at the least significant bit only.
This CL improves this situation by implementing a template
specialization for {bool} which uses the same trick, and uses that
instead of hand-coding the modulo operation at the call sites.

R=manoskouk@chromium.org

Bug: v8:11879
Change-Id: I6f9ce02dd8d9cd0998b83e081e4c6ca773e6cb53
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3129429Reviewed-by: Manos Koukoutos <manoskouk@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/main@{#76588}