Ignition remembers the correct context to restore when entering an
exception handler by moving the context to an interpreter register
when entering a try block, and restoring it from there when unwinding
the frame and entering the catch block.

Maglev code has to do the same by taking the context from the
appropriate register for the handler's frame state.

Bug: v8:7700
Change-Id: I294fcccc845c660b2289b6d7b40f49f1aa46283d
Fixed: chromium:1359928
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3892352Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Jakob Linke <jgruber@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83181}