[ Tool ] Only listen for DebugConnectionInfo if the service protocol is supported

[bkonyi]

Fixes #174330

[gemini-code-assist]

Code Review

This pull request addresses an issue where flutter run --wasm --machine would hang. The fix involves checking if the service protocol is supported before attempting to listen for debug connection information.

In packages/flutter_tools/lib/src/commands/daemon.dart, the condition for setting up the DebugConnectionInfo completer is updated to include a check for runner.supportsServiceProtocol. This prevents waiting for a debug port on platforms without service protocol support, such as WASM.

To enable testing of this change, packages/flutter_tools/test/integration.shard/test_driver.dart is modified to include a wasm flag. This flag controls the --wasm argument for the flutter run command and adjusts the waitForDebugPort logic accordingly.

A new regression test is added in packages/flutter_tools/test/web.shard/web_run_chrome_test.dart to confirm that flutter run --wasm --machine on Chrome devices now works as expected without hanging.

The changes are self-contained and include a regression test. I have no further comments or suggestions.