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

class I extends core::Object {
  synthetic constructor •() → self::I
    : super core::Object::•()
    ;
  operator [](core::int index) → core::bool
    return true;
}
abstract class C extends core::Object implements self::I {
  synthetic constructor •() → self::C
    : super core::Object::•()
    ;
}
static method f(self::C c) → dynamic {
  core::bool x = c.{self::I::[]}(0){(core::int) → core::bool};
}
static method main() → dynamic {}