[test] Add configs for mac-arm64 debug builders

No-Try: true
Bug: chromium:1126457
Change-Id: Ie78d441dea6f86531230ac10fc1e7c7f6bfe254c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2773350
Auto-Submit: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Liviu Rau <liviurau@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73573}

infra/mb/mb_config.pyl

@@ -87,6 +87,7 @@
       'V8 Mac64 GC Stress': 'debug_x64',
       'V8 Mac64 ASAN': 'release_x64_asan_no_lsan',
       'V8 Mac - arm64 - release builder': 'release_arm64',
+      'V8 Mac - arm64 - debug builder': 'debug_arm64',
       'V8 Mac - arm64 - sim - debug builder': 'debug_simulate_arm64',
       'V8 Mac - arm64 - sim - release builder': 'release_simulate_arm64',
       # Sanitizers.

infra/testing/builders.pyl

@@ -1425,6 +1425,22 @@
       {'name': 'd8testing', 'variant': 'extra'},
     ],
   },
+  'V8 Mac - arm64 - debug': {
+    'swarming_dimensions' : {
+      'os': 'Mac-11',
+      'cpu': 'arm64',
+      'pool': 'chromium.tests.mac-arm64',
+    },
+    'swarming_task_attrs': {
+      'expiration': 14400,
+      'hard_timeout': 3600,
+      'priority': 35,
+    },
+    'tests': [
+      {'name': 'd8testing', 'shards': 2},
+      {'name': 'd8testing', 'variant': 'extra', 'shards': 2},
+    ],
+  },
   'V8 Mac - arm64 - sim - debug': {
     'swarming_dimensions' : {
       'cpu': 'x86-64',