[Dart 3.7] Shorter code creates more lines

[passsy]

Hey Bob,

Some feedback on the new proposed style for Dart 3.7. I tested it with my spot package and found this interesting case I can't explain. It looks like a bug to me.

Before

unformatted, does not fit within 80 characters

void main() {
  testWidgets('sometest', (tester) async {
    final appBar = spot<AppBar>();
    
    appBar.spotIcon(Icons.settings, parents: [spot<IconButton>()]).doesNotExist();

    appBar.spotIcon(Icons.home, parents: [spot<IconButton>()]).existsExactlyNTimes(2);
  });
}

Actual

// Formatted with Dart 3.5
void main() {
  testWidgets('sometest', (tester) async {
    final appBar = spot<AppBar>();

    appBar
        .spotIcon(Icons.settings, parents: [spot<IconButton>()]).doesNotExist();

    appBar.spotIcon(Icons.home,
        parents: [spot<IconButton>()]).existsExactlyNTimes(2);
  });
}

// Formatted with Dart 3.7 (--git-ref=flutter-style-experiment)
void main() {
  testWidgets('sometest', (tester) async {
    final appBar = spot<AppBar>();

    appBar.spotIcon(
      Icons.settings,
      parents: [spot<IconButton>()],
    ).doesNotExist();

    appBar
        .spotIcon(Icons.home, parents: [spot<IconButton>()])
        .existsExactlyNTimes(2);
  });
}

What's unclear is why the first appBar.spotIcon line creates 4 LOC, whereas the second only requires 3.

It is possible to format the first line, like the second, without any problem. Why do they behave differently?

Expected

void main() {
  testWidgets('sometest', (tester) async {
    final appBar = spot<AppBar>();

    appBar
        .spotIcon(Icons.settings, parents: [spot<IconButton>()])
        .doesNotExist();

    appBar
        .spotIcon(Icons.home, parents: [spot<IconButton>()])
        .existsExactlyNTimes(2);
  });
}