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prefer-symbol-over-key

added in: 1.8.0
style

Suggests using symbols instead of string keys in Patrol tests.

Example​

❌ Bad:

void main() {
  patrolTest('widget test', () {
    ...
    $(Key('button')); // LINT
  });
}

✅ Good:

void main() {
  patrolTest('widget test', () {
    ...
    $(#button);
  });
}