Previously only Builtins declared TFJ or CPP in builtins-definitions.h
were converted to direct calls in ReduceJSCall. This allows all
builtins with JS linkage to be converted. To facilitate this, it adds
Builtins::HasJSLinkage(id) that returns true for any builtins with
JSTrampolineDescriptor as their call descriptor.

It also ensures that any JS functions installed by the bootstrapper are
also required to have JS linkage to catch early errors.

Change-Id: I2fddca41f9ab1c7c9633aa0ab4847a5c108e2bb2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1883549Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64698}