By adding the receiver variable to the locals we'll automatically create
a proper scope info entry. The receiver is allocated before we allocate
other locals anyway, so it'll be properly allocated.

Change-Id: Ic1d57257d26473f3a50cce27c335565bcb6e06c3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3211995Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/main@{#77302}