This CL enables proper testing for the CSA/Torque implementation of
SwissNameDictionary. This is done by changing the implementation of
test_swiss_hash_table::CSATestRunner.

This is the last CL of this series and concludes the CSA/Torque
implementation of SwissNameDictionary.

Bug: v8:11330
Change-Id: Ib46ef3a2c9ec9746591c2af94346be7d0382122b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2786843
Commit-Queue: Frank Emrich <emrich@google.com>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73685}