Checking for Smis is cheap. There is no need to put this in the
deferred code block. With this CL we will bail out earlier for
Smis.

Bug: v8:11420
Change-Id: I52e39def633d7cb8bd51ae24d56d9582f56faf41
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2872826Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74475}