This is to mitigate the performance regression introduced in the linked
bug.

Changes:
- Postpone (this->failed()) checks into CALL_INTERFACE_IF_REACHABLE.
- Remove the check for invalid stack after typechecking a branch. This
  shouldn't impact correctness, since the program is invalid and
  decoding should stop after this instruction.

Bug: chromium:1153530
Change-Id: Ie856e5b365c32ead8e6bbfa23e3007c0836741ef
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2565118Reviewed-by: Clemens Backes <clemensb@chromium.org>
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71489}