... to ease its inlining to the bytecode handlers.
The new code organisation still don't produce unwanted frame creation
code on a fast path.

Bug: v8:7206, chromium:576312
Change-Id: Ib516ae0795ff1788b3a7e0bb521f72dfa68444f0
Reviewed-on: https://chromium-review.googlesource.com/833869
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50257}