library test;
import self as self;
import "dart:core" as core;

class B extends core::Object {
  synthetic constructor •() → self::B
    ;
  method f(core::int x, core::int y) → void
    ;
}
abstract class I<T extends core::Object = dynamic> extends core::Object {
  synthetic constructor •() → self::I<self::I::T>
    ;
  abstract method f(generic-covariant-impl self::I::T x, core::Object y) → void;
}
abstract class C extends self::B implements self::I<core::int> {
  synthetic constructor •() → self::C
    ;
}
static method main() → void
  ;