| Index: test/codegen/expect/language/function_subtype2_test.js | 
| diff --git a/test/codegen/expect/language/function_subtype2_test.js b/test/codegen/expect/language/function_subtype2_test.js | 
| new file mode 100644 | 
| index 0000000000000000000000000000000000000000..b5e4a7691308bd8328216b232d972d8e16e271c6 | 
| --- /dev/null | 
| +++ b/test/codegen/expect/language/function_subtype2_test.js | 
| @@ -0,0 +1,150 @@ | 
| +dart_library.library('language/function_subtype2_test', null, /* Imports */[ | 
| +  'dart_sdk', | 
| +  'expect' | 
| +], function load__function_subtype2_test(exports, dart_sdk, expect) { | 
| +  'use strict'; | 
| +  const core = dart_sdk.core; | 
| +  const dart = dart_sdk.dart; | 
| +  const dartx = dart_sdk.dartx; | 
| +  const expect$ = expect.expect; | 
| +  const function_subtype2_test = Object.create(null); | 
| +  let C = () => (C = dart.constFn(function_subtype2_test.C$()))(); | 
| +  let COfint$int$int = () => (COfint$int$int = dart.constFn(function_subtype2_test.C$(core.int, core.int, core.int)))(); | 
| +  let COfint$double$int = () => (COfint$double$int = dart.constFn(function_subtype2_test.C$(core.int, core.double, core.int)))(); | 
| +  let COfint$int$double = () => (COfint$int$double = dart.constFn(function_subtype2_test.C$(core.int, core.int, core.double)))(); | 
| +  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))(); | 
| +  function_subtype2_test.T1 = dart.typedef('T1', () => dart.functionType(dart.void, [core.int, core.int])); | 
| +  function_subtype2_test.T2 = dart.typedef('T2', () => dart.functionType(dart.void, [core.int], [core.int])); | 
| +  function_subtype2_test.T3 = dart.typedef('T3', () => dart.functionType(dart.void, [], [core.int, core.int])); | 
| +  function_subtype2_test.T4 = dart.typedef('T4', () => dart.functionType(dart.void, [core.int], [core.int, core.int])); | 
| +  function_subtype2_test.T5 = dart.typedef('T5', () => dart.functionType(dart.void, [], [core.int, core.int, core.int])); | 
| +  function_subtype2_test.C$ = dart.generic((T, S, U) => { | 
| +    class C extends core.Object { | 
| +      m1(a, b) { | 
| +        T._check(a); | 
| +        S._check(b); | 
| +      } | 
| +      m2(a, b) { | 
| +        T._check(a); | 
| +        if (b === void 0) b = null; | 
| +        S._check(b); | 
| +      } | 
| +      m3(a, b) { | 
| +        if (a === void 0) a = null; | 
| +        T._check(a); | 
| +        if (b === void 0) b = null; | 
| +        S._check(b); | 
| +      } | 
| +      m4(a, b, c) { | 
| +        T._check(a); | 
| +        if (b === void 0) b = null; | 
| +        S._check(b); | 
| +        if (c === void 0) c = null; | 
| +        U._check(c); | 
| +      } | 
| +      m5(a, b, c) { | 
| +        if (a === void 0) a = null; | 
| +        T._check(a); | 
| +        if (b === void 0) b = null; | 
| +        S._check(b); | 
| +        if (c === void 0) c = null; | 
| +        U._check(c); | 
| +      } | 
| +    } | 
| +    dart.addTypeTests(C); | 
| +    dart.setSignature(C, { | 
| +      methods: () => ({ | 
| +        m1: dart.definiteFunctionType(dart.void, [T, S]), | 
| +        m2: dart.definiteFunctionType(dart.void, [T], [S]), | 
| +        m3: dart.definiteFunctionType(dart.void, [], [T, S]), | 
| +        m4: dart.definiteFunctionType(dart.void, [T], [S, U]), | 
| +        m5: dart.definiteFunctionType(dart.void, [], [T, S, U]) | 
| +      }) | 
| +    }); | 
| +    return C; | 
| +  }); | 
| +  function_subtype2_test.C = C(); | 
| +  function_subtype2_test.main = function() { | 
| +    let c1 = new (COfint$int$int())(); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T1.is(dart.bind(c1, 'm1')), "(int,int)->void is (int,int)->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T2.is(dart.bind(c1, 'm1')), "(int,int)->void is not (int,[int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T3.is(dart.bind(c1, 'm1')), "(int,int)->void is not ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c1, 'm1')), "(int,int)->void is not (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c1, 'm1')), "(int,int)->void is not ([int,int,int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T1.is(dart.bind(c1, 'm2')), "(int,[int])->void is (int,int)->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T2.is(dart.bind(c1, 'm2')), "(int,[int])->void is (int,[int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T3.is(dart.bind(c1, 'm2')), "(int,[int])->void is not ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c1, 'm2')), "(int,[int])->void is not (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c1, 'm2')), "(int,[int])->void is not ([int,int,int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T1.is(dart.bind(c1, 'm3')), "([int,int])->void is (int,int)->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T2.is(dart.bind(c1, 'm3')), "([int,int])->void is (int,[int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T3.is(dart.bind(c1, 'm3')), "([int,int])->void is ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c1, 'm3')), "([int,int])->void is not (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c1, 'm3')), "([int,int])->void is not ([int,int,int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T1.is(dart.bind(c1, 'm4')), "(int,[int,int])->void is (int,int)->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T2.is(dart.bind(c1, 'm4')), "(int,[int,int])->void is (int,[int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T3.is(dart.bind(c1, 'm4')), "(int,[int,int])->void is not ([int,int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T4.is(dart.bind(c1, 'm4')), "(int,[int,int])->void is (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c1, 'm4')), "(int,[int,int])->void is not ([int,int,int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T1.is(dart.bind(c1, 'm5')), "([int,int,int])->void is (int,int)->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T2.is(dart.bind(c1, 'm5')), "([int,int,int])->void is (int,[int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T3.is(dart.bind(c1, 'm5')), "([int,int,int])->void is ([int,int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T4.is(dart.bind(c1, 'm5')), "([int,int,int])->void is (int,[int,int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T5.is(dart.bind(c1, 'm5')), "([int,int,int])->void is ([int,int,int])->void"); | 
| +    let c2 = new (COfint$double$int())(); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T1.is(dart.bind(c2, 'm1')), "(int,double)->void is not (int,int)->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T2.is(dart.bind(c2, 'm1')), "(int,double)->void is not not (int,[int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T3.is(dart.bind(c2, 'm1')), "(int,double)->void is not ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c2, 'm1')), "(int,double)->void is not (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c2, 'm1')), "(int,double)->void is not ([int,int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T1.is(dart.bind(c2, 'm2')), "(int,[double])->void is not (int,int)->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T2.is(dart.bind(c2, 'm2')), "(int,[double])->void is not (int,[int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T3.is(dart.bind(c2, 'm2')), "(int,[double])->void is not ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c2, 'm2')), "(int,[double])->void is not (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c2, 'm2')), "(int,[double])->void is not ([int,int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T1.is(dart.bind(c2, 'm3')), "([int,double])->void is not (int,int)->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T2.is(dart.bind(c2, 'm3')), "([int,double])->void is not (int,[int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T3.is(dart.bind(c2, 'm3')), "([int,double])->void is not ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c2, 'm3')), "([int,double])->void is not (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c2, 'm3')), "([int,double])->void is not ([int,int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T1.is(dart.bind(c2, 'm4')), "(int,[double,int])->void is not (int,int)->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T2.is(dart.bind(c2, 'm4')), "(int,[double,int])->void is not (int,[int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T3.is(dart.bind(c2, 'm4')), "(int,[double,int])->void is not ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c2, 'm4')), "(int,[double,int])->void is (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c2, 'm4')), "(int,[double,int])->void is ([int,int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T1.is(dart.bind(c2, 'm5')), "([int,double,int])->void is not (int,int)->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T2.is(dart.bind(c2, 'm5')), "([int,double,int])->void is not (int,[int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T3.is(dart.bind(c2, 'm5')), "([int,double,int])->void is not ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c2, 'm5')), "([int,double,int])->void is (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c2, 'm5')), "([int,double,int])->void is ([int,int,int])->void"); | 
| +    let c3 = new (COfint$int$double())(); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T1.is(dart.bind(c3, 'm1')), "(int,int)->void is (int,int)->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T2.is(dart.bind(c3, 'm1')), "(int,int)->void is not (int,[int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T3.is(dart.bind(c3, 'm1')), "(int,int)->void is not ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c3, 'm1')), "(int,int)->void is not (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c3, 'm1')), "(int,int)->void is not ([int,int,int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T1.is(dart.bind(c3, 'm2')), "(int,[int])->void is (int,int)->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T2.is(dart.bind(c3, 'm2')), "(int,[int])->void is (int,[int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T3.is(dart.bind(c3, 'm2')), "(int,[int])->void is not ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c3, 'm2')), "(int,[int])->void is not (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c3, 'm2')), "(int,[int])->void is not ([int,int,int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T1.is(dart.bind(c3, 'm3')), "([int,int])->void is (int,int)->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T2.is(dart.bind(c3, 'm3')), "([int,int])->void is (int,[int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T3.is(dart.bind(c3, 'm3')), "([int,int])->void is ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c3, 'm3')), "([int,int])->void is not (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c3, 'm3')), "([int,int])->void is not ([int,int,int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T1.is(dart.bind(c3, 'm4')), "(int,[int,double])->void is (int,int)->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T2.is(dart.bind(c3, 'm4')), "(int,[int,double])->void is (int,[int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T3.is(dart.bind(c3, 'm4')), "(int,[int,double])->void is not ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c3, 'm4')), "(int,[int,double])->void is (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c3, 'm4')), "(int,[int,double])->void is ([int,int,int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T1.is(dart.bind(c3, 'm5')), "([int,int,double])->void is (int,int)->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T2.is(dart.bind(c3, 'm5')), "([int,int,double])->void is (int,[int])->void"); | 
| +    expect$.Expect.isTrue(function_subtype2_test.T3.is(dart.bind(c3, 'm5')), "([int,int,double])->void is ([int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T4.is(dart.bind(c3, 'm5')), "([int,int,double])->void is (int,[int,int])->void"); | 
| +    expect$.Expect.isFalse(function_subtype2_test.T5.is(dart.bind(c3, 'm5')), "([int,int,double])->void is ([int,int,int])->void"); | 
| +  }; | 
| +  dart.fn(function_subtype2_test.main, VoidTodynamic()); | 
| +  // Exports: | 
| +  exports.function_subtype2_test = function_subtype2_test; | 
| +}); | 
|  |