Some assertEquals:s should've been assertSame.

Drive-by: Coding style fixes
Drive-by: Fix the parameter order of assertEquals, it should be
(expected, found).

Bug: v8:11525
Change-Id: I4e6db32329cbbe455853d19c20abe9d251263505
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3877148
Auto-Submit: Marja Hölttä <marja@chromium.org>
Reviewed-by: Matthias Liedtke <mliedtke@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Commit-Queue: Matthias Liedtke <mliedtke@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83024}