proper_super_calls

Ensures that super calls are made in the correct order for the following StatefulWidget methods:

• initState
• dispose

Example

BAD:

@override
void initState() {
  print('');
  super.initState(); // LINT, super.initState should be called first.
}

@override
void dispose() {
  super.dispose(); // LINT, super.dispose should be called last.
  print('');
}

GOOD:

@override
void initState() {
  super.initState(); // OK
  print('');
}

@override
void dispose() {
  print('');
  super.dispose(); // OK
}