library /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;

class C extends core::Object {
  synthetic constructor •() → self::C
    ;
  method instance1({dynamic z = null}) → void
    ;
  method instance2(dynamic a, {dynamic z = null}) → void
    ;
}
class Bad extends core::Object {
  synthetic constructor •() → self::Bad
    ;
  method method() → dynamic
    ;
}
static field self::C c;
static field core::int z;
static method main() → dynamic
  ;