Make mixins work on native classes.

tests/compiler/dart2js_native/native_mixin_with_plain_test.dart

+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import "package:expect/expect.dart";
+
+// Test that native classes and ordinary Dart classes can both use the same
+// ordinary Dart classes as a mixin.
+
+class A native "*A" {
+  final String aa;
+  foo() => "A-foo $aa";
+  baz() => "A-baz $aa";
+}
+
+class B extends A with M native "*B" {
+  bar() => 'B-bar -> ${baz()}';
+  get mm => 'B.mm($aa)';
+}
+
+class M {
+  foo() => "M-foo ${this.mm}";
+  bar() => "M-bar ${this.mm}";
+  get mm => 'M.mm';
+}
+
+class C {
+  final String cc = 'cc';
+  foo() => 'C-foo $cc';
+  baz() => 'C-baz $cc';
+}
+
+class D extends C with M {
+  bar() => 'D-bar -> ${baz()}';
+  get mm => 'D.mm($cc)';
+}
+
+
+makeA() native;
+makeB() native;
+
+void setup() native """
+function A() {this.aa = 'aa'}
+function B() {this.aa = 'bb'}
+makeA = function(){return new A;};
+makeB = function(){return new B;};
+""";
+
+main() {
+  setup();
+  var things = [makeA, makeB, () => new C(), () => new D(), () => new M()]
+      .map((f)=>f())
+      .toList();
+  var a = things[0];
+  var b = things[1];
+  var c = things[2];
+  var d = things[3];
+  var m = things[4];
+
+  Expect.equals("M-foo M.mm", m.foo());
+  Expect.equals("M-bar M.mm", m.bar());
+  Expect.throws(() => m.baz(), (error) => error is NoSuchMethodError);
+  Expect.isFalse(m is A);
+  Expect.isFalse(m is B);
+  Expect.isFalse(m is C);
+  Expect.isFalse(m is D);
+  Expect.isTrue(m is M);
+
+  Expect.equals("A-foo aa", a.foo());
+  Expect.throws(() => a.bar(), (error) => error is NoSuchMethodError);
+  Expect.equals("A-baz aa", a.baz());
+  Expect.isTrue(a is A);
+  Expect.isFalse(a is B);
+  Expect.isFalse(a is C);
+  Expect.isFalse(a is D);
+  Expect.isFalse(a is M);
+
+  Expect.equals("M-foo B.mm(bb)", b.foo());
+  Expect.equals("B-bar -> A-baz bb", b.bar());
+  Expect.equals("A-baz bb", b.baz());
+  Expect.isTrue(b is A);
+  Expect.isTrue(b is B);
+  Expect.isFalse(b is C);
+  Expect.isFalse(b is D);
+  Expect.isTrue(b is M);
+
+  Expect.equals("C-foo cc", c.foo());
+  Expect.throws(() => c.bar(), (error) => error is NoSuchMethodError);
+  Expect.equals("C-baz cc", c.baz());
+  Expect.isFalse(c is A);
+  Expect.isFalse(c is B);
+  Expect.isTrue(c is C);
+  Expect.isFalse(c is D);
+  Expect.isFalse(c is M);
+
+  Expect.equals("M-foo D.mm(cc)", d.foo());
+  Expect.equals("D-bar -> C-baz cc", d.bar());
+  Expect.equals("C-baz cc", d.baz());
+  Expect.isFalse(d is A);
+  Expect.isFalse(d is B);
+  Expect.isTrue(d is C);
+  Expect.isTrue(d is D);
+  Expect.isTrue(d is M);
+
+}