Firefox fails to start when called via `/Applications/Firefox.app/Contents/MacOS/firefox-bin` on macOS

[koji-1009]

When I try to run the test code for the browser API, I cannot run the test using firefox.
Note that if -p chrome is specified, it works fine.

$ dart test -p firefox
00:03 +0: loading test/crypto_subtle_test.dart
Compiled 11,501,289 input bytes (6,524,318 characters source) to 1,333,060 characters JavaScript in 3.08 seconds using 323.453 MB of memory

00:03 +0 -1: loading test/crypto_subtle_test.dart [E]
  Failed to load "test/crypto_subtle_test.dart":
  Failed to run Firefox: No such file or directory
    Command: /Applications/Firefox.app/Contents/MacOS/firefox-bin --profile /private/var/folders/hr/y37hfwp553b_1bc41k7s8nqm0000gn/T/dart_test_JsusyQ http://localhost:57615/rxxgE01iInxRSACwP2MzZZtXA6TVPGX2/packages/test/src/runner/browser/static/index.html?managerUrl=ws%3A%2F%2Flocalhost%3A57615%2FrxxgE01iInxRSACwP2MzZZtXA6TVPGX2%2F0&debug=false --no-remote.
  dart:io-patch/process_patch.dart 402:33                      _ProcessImpl._start
  dart:io-patch/process_patch.dart 38:20                       Process.start
  package:test/src/runner/browser/firefox.dart 44:33           Firefox._startBrowser
  package:test/src/runner/browser/firefox.dart 35:13           new Firefox.<fn>
  package:test/src/runner/browser/browser.dart 61:39           new Browser.<fn>
  dart:async/zone.dart 1399:13                                 _rootRun
  dart:async/zone.dart 1301:19                                 _CustomZone.run
  dart:async/zone.dart 1804:10                                 _runZoned
  dart:async/zone.dart 1792:12                                 runZonedGuarded
  package:test/src/runner/browser/browser.dart 60:5            new Browser
  package:test/src/runner/browser/firefox.dart 34:9            new Firefox
  package:test/src/runner/browser/browser_manager.dart 161:28  BrowserManager._newBrowser
  package:test/src/runner/browser/browser_manager.dart 117:19  BrowserManager._start
  package:test/src/runner/browser/browser_manager.dart 107:7   BrowserManager.start
  package:test/src/runner/browser/platform.dart 438:33         BrowserPlatform._browserManagerFor
  package:test/src/runner/browser/platform.dart 277:32         BrowserPlatform.load
  ===== asynchronous gap ===========================
  package:test_core/src/runner/loader.dart 227:27              Loader.loadFile.<fn>
  ===== asynchronous gap ===========================
  package:test_core/src/runner/load_suite.dart 98:19           new LoadSuite.<fn>.<fn>

According to Bugzilla, Firefox 121 and later versions require the use of firefox instead of firefox-bin.

• https://bugzilla.mozilla.org/show_bug.cgi?id=1871447
• web-ext run fails to start firefox on macOS mozilla/web-ext#2975

Looking at GitHub runner, macos-latest has Firefox 122.0.1 installed.

https://github.com/actions/runner-images/blob/d4e0d19512a62e7f34efe68b0b85464437a31b55/images/macos/macos-12-Readme.md#browsers

The code that references firefox-bin is in the following location.

https://github.com/dart-lang/test/blob/test-v1.25.2/pkgs/test/lib/src/runner/browser/default_settings.dart#L27

my enviroment

• MacBook Pro (Apple M1 Pro)
• macOS 14.3.1（23D60）
• Firefox 123.0

[koji-1009]

Fixed by #2276