convert_to_for_in_iterable_indexed_loop
Convert a for-in loop to a for-in loop that uses iterable.indexed instead of iterable directly.
Before
void fn(Iterable<int> numbers) {
for (final int number in numbers) {}
}
```dart title="After"
void fn(Iterable<int> numbers) {
for (final (int index, int number) in numbers.indexed) {}
}
