[test] Add interpreted-regexp testing variant

This adds the new runtime flag as a variant and runs it on a subset of
builders corresponding to the "extra" testing set.

Currently failing tests are skipped in the new variant.

After https://crrev.com/c/1433777 this costs only little additional
resources.

Bug: v8:8678
Change-Id: Ibd0e38872814d11252e55a7c6a58d313aa84ebe3
Reviewed-on: https://chromium-review.googlesource.com/c/1433774
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59080}

test/cctest/cctest.status

@@ -433,6 +433,12 @@
   'test-compiler/DecideToPretenureDuringCompilation': [SKIP],
 }],  # variant == stress_background_compile
 
+##############################################################################
+['variant == interpreted_regexp', {
+  # Times out: https://crbug.com/v8/8678
+  'test-api/RegExpInterruption': [SKIP],
+}],  # variant == interpreted_regexp
+
 ##############################################################################
 ['variant == no_wasm_traps', {
   'test-accessors/*': [SKIP],

test/test262/test262.status

@@ -1321,6 +1321,13 @@
   'built-ins/SharedArrayBuffer/length-is-too-large-throws': [SKIP],
 }],  # asan == True or msan == True or tsan == True
 
+['variant == interpreted_regexp', {
+  # Call stack exceeded: https://crbug.com/v8/8678
+  'built-ins/RegExp/CharacterClassEscapes/character-class-non-digit-class-escape-plus-quantifier-flags-u': [SKIP],
+  'built-ins/RegExp/CharacterClassEscapes/character-class-non-whitespace-class-escape-plus-quantifier-flags-u': [SKIP],
+  'built-ins/RegExp/CharacterClassEscapes/character-class-non-word-class-escape-plus-quantifier-flags-u': [SKIP],
+}],  # variant == interpreted_regexp
+
 ['variant == no_wasm_traps', {
   '*': [SKIP],
 }],  # variant == no_wasm_traps

tools/testrunner/local/variants.py

@@ -10,6 +10,7 @@ ALL_VARIANT_FLAGS = {
   "gc_stats": [["--gc_stats=1"]],
   # Alias of exhaustive variants, but triggering new test framework features.
   "infra_staging": [[]],
+  "interpreted_regexp": [["--regexp-interpret-all"]],
   "no_liftoff": [["--no-wasm-tier-up"]],
   "minor_mc": [["--minor-mc"]],
   # No optimization means disable all optimizations. OptimizeFunctionOnNextCall

tools/testrunner/standard_runner.py

@@ -43,7 +43,7 @@ VARIANT_ALIASES = {
   # Shortcut for the two above ("more" first - it has the longer running tests).
   "exhaustive": MORE_VARIANTS + VARIANTS,
   # Additional variants, run on a subset of bots.
-  "extra": ["future", "no_liftoff", "no_wasm_traps"],
+  "extra": ["future", "interpreted_regexp", "no_liftoff", "no_wasm_traps"],
 }
 
 GC_STRESS_FLAGS = ["--gc-interval=500", "--stress-compaction",