Allows reflection of v8::Data types, such as being able to check if a
value is a v8::Module. This is useful for libraries which wrap the V8
API, such as rusty_v8.

Change-Id: I4841c5f7f60885b20e1504c8562e278844ff7ec3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2382719Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Gus Caplan <snek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69649}