The following program crashes the compiler:

Main.dart:
import "lib.dart" deferred as lib;

void main() {
  lib.loadLibrary().then((_) {
    new lib.A2();
    new lib.B2();
    new lib.C3();
    new lib.D3(10);
  });
}

lib.dart:
a() => print("123");

b() => print("123");

c() => print("123");

d() => print("123");

class B {
  B() {
    b();
  }
}

class B2 extends B {
  // No constructor creates a synthetic constructor that has an implicit
  // super-call.
}

class A {
  A() {
    a();
  }
}

class A2 extends A {
  // Implicit super call.
  A2();
}

class C1 {}

class C2 {
  C2() {
    c();
  }
}

class C2p {
  C2() {
    c();
  }
}

class C3 extends C2 with C1 {
  // Implicit redirecting "super" call via mixin.
}

class D1 {
}

class D2 {
  D2(x) {
    d();
  }
}

// Implicit redirecting "super" call with a parameter via mixin.
class D3 = D2 with D1;