over_react_missing_cascade_parens

This diagnostic detects syntax errors related to the parentheses around over_react builder cascades.

Well-formed:

@override
render() {
  return (Dom.div()
    ..id = 'foo'
    ..className = 'foo--variant'
  )(
    'Hi there',
  );
}

Syntax errors due to missing parentheses:

@override
render() {
  return Dom.div()
    ..id = 'foo'
    ..className = 'foo--variant'
  (
    'Hi there',
  );
}