[test262] Roll test262

https://chromium.googlesource.com/external/github.com/tc39/test262/+log/7461973..9215420

Bug: v8:7834
Change-Id: I5f830a59c57133b3c0ebe7633b60c20b00caa3ff
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3902516Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83283}

DEPS

@@ -150,7 +150,7 @@ deps = {
   'test/mozilla/data':
     Var('chromium_url') + '/v8/deps/third_party/mozilla-tests.git' + '@' + 'f6c578a10ea707b1a8ab0b88943fe5115ce2b9be',
   'test/test262/data':
-    Var('chromium_url') + '/external/github.com/tc39/test262.git' + '@' + '746197355c1705b7d4463fc75c29433c0ce2fd0d',
+    Var('chromium_url') + '/external/github.com/tc39/test262.git' + '@' + '9215420deee3e5887d29f95822bf6a474c1bf728',
   'third_party/android_ndk': {
     'url': Var('chromium_url') + '/android_ndk.git' + '@' + '8388a2be5421311dc75c5f937aae13d821a27f3d',
     'condition': 'checkout_android',

test/test262/testcfg.py

@@ -41,7 +41,7 @@ from testrunner.outproc import test262
 
 # TODO(littledan): move the flag mapping into the status file
 FEATURE_FLAGS = {
-    'Intl.NumberFormat-v3': '--harmony_intl_number_format_v3',
+    'Intl.NumberFormat-v3': '--harmony-intl-number-format-v3',
     'Symbol.prototype.description': '--harmony-symbol-description',
     'FinalizationRegistry': '--harmony-weak-refs-with-cleanup-some',
     'WeakRef': '--harmony-weak-refs-with-cleanup-some',
@@ -50,9 +50,10 @@ FEATURE_FLAGS = {
     'import-assertions': '--harmony-import-assertions',
     'resizable-arraybuffer': '--harmony-rab-gsab',
     'Temporal': '--harmony-temporal',
-    'array-find-from-last': '--harmony_array_find_last',
+    'array-find-from-last': '--harmony-array-find-last',
     'ShadowRealm': '--harmony-shadow-realm',
     'regexp-v-flag': '--harmony-regexp-unicode-sets',
+    'array-grouping': '--harmony-array-grouping',
 }
 
 SKIPPED_FEATURES = set([])