This patch contains real changes affecting the following tests:
- regress-1119: Bogus test, was failing justifiedly. Dropped.
- regress-crbug-9161: Was accidentally disabled everywhere. Re-enabled
                      for ASan (as the comment promised).
- regress-crbug-160010: Throws "invalid string length" on all platforms.
                        Was disabled everywhere. Dropped.
- regress-crbug-514081: Test was previously changed to use 2MB instead
                        of 2GB. Re-enabled variants.

Additionally, it reorders a bunch of definitions:
- Introduced separate sections for "mode == debug" and "no_i18n" to make
  the "ALWAYS" section cleaner.
- Sorted various "slow tests", "open bugs", and "no_variants" definitions
  into groups.
- Simplified long "arch == x or arch == y" sequences to "arch in (x, y)".

Bug: v8:10021
Change-Id: Ibe404ae400011196473cf082a4706ddbef7c8349
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1995390Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65718}