| class Class { |
| Class call() => this; |
| Class get nonNullableClass => this; |
| NullableIndexClass get nonNullableNullableIndexClass => NullableIndexClass(); |
| int? nullableField; |
| int nonNullableField = 0; |
| int operator [](int key) => key; |
| void operator []=(int key, int value) {} |
| } |
| |
| class NullableIndexClass { |
| int? operator [](int key) => key; |
| void operator []=(int key, int value) {} |
| } |
| |
| errors(Class? nullableClass, Class nonNullableClass, int? nullableInt, |
| int nonNullableInt, NullableIndexClass? nullableNullableIndexClass) {} |
| main() {} |