The JSCallReducer could in theory inline the default resolve and reject
functions passed to the executor in the Promise constructor. But that
inlining is almost never triggered because we don't have SFI based feedback
in the CallIC. Also the use of the Promise constructor is discouraged,
so we shouldn't really need to squeeze the last bit of performance out
of this even in the future.

Getting rid of this optimization will make significantly easier to
implement the Swallowed Rejection Hook, as there's less churn on the
TurboFan side then.

Bug: v8:7919
Change-Id: If0c54f1c6c7ce95686cd74232be6b8693ac688c9
Reviewed-on: https://chromium-review.googlesource.com/1125926
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#54210}