Check in codegen test expectations.

test/codegen/expect/language/function_subtype_local4_test.js

Index: test/codegen/expect/language/function_subtype_local4_test.js
diff --git a/test/codegen/expect/language/function_subtype_local4_test.js b/test/codegen/expect/language/function_subtype_local4_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..db2db304da9f1d2e04e1db9ba882091a7771972d
--- /dev/null
+++ b/test/codegen/expect/language/function_subtype_local4_test.js
@@ -0,0 +1,63 @@
+dart_library.library('language/function_subtype_local4_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__function_subtype_local4_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_subtype_local4_test = Object.create(null);
+  let C = () => (C = dart.constFn(function_subtype_local4_test.C$()))();
+  let D = () => (D = dart.constFn(function_subtype_local4_test.D$()))();
+  let DOfString$bool = () => (DOfString$bool = dart.constFn(function_subtype_local4_test.D$(core.String, core.bool)))();
+  let DOfbool$int = () => (DOfbool$int = dart.constFn(function_subtype_local4_test.D$(core.bool, core.int)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  function_subtype_local4_test.Foo = dart.typedef('Foo', () => dart.functionType(dart.void, [core.bool], [core.String]));
+  function_subtype_local4_test.Bar = dart.typedef('Bar', () => dart.functionType(dart.void, [core.bool], [core.String]));
+  function_subtype_local4_test.Baz = dart.typedef('Baz', () => dart.functionType(dart.void, [core.bool], {b: core.String}));
+  function_subtype_local4_test.Boz = dart.typedef('Boz', () => dart.functionType(core.int, [core.bool]));
+  function_subtype_local4_test.C$ = dart.generic(T => {
+    let T__Tovoid = () => (T__Tovoid = dart.constFn(dart.definiteFunctionType(dart.void, [T], [core.String])))();
+    let T__Tovoid$ = () => (T__Tovoid$ = dart.constFn(dart.definiteFunctionType(dart.void, [T], {b: core.String})))();
+    class C extends core.Object {
+      test(nameOfT, expectedResult) {
+        function foo(a, b) {
+          if (b === void 0) b = null;
+        }
+        dart.fn(foo, T__Tovoid());
+        function baz(a, opts) {
+          let b = opts && 'b' in opts ? opts.b : null;
+        }
+        dart.fn(baz, T__Tovoid$());
+        expect$.Expect.equals(expectedResult, function_subtype_local4_test.Foo.is(foo), dart.str`C<${nameOfT}>.foo is Foo`);
+        expect$.Expect.equals(expectedResult, function_subtype_local4_test.Bar.is(foo), dart.str`C<${nameOfT}>.foo is Bar`);
+        expect$.Expect.isFalse(function_subtype_local4_test.Baz.is(foo), dart.str`C<${nameOfT}>.foo is Baz`);
+        expect$.Expect.isFalse(function_subtype_local4_test.Boz.is(foo), dart.str`C<${nameOfT}>.foo is Boz`);
+        expect$.Expect.isFalse(function_subtype_local4_test.Foo.is(baz), dart.str`C<${nameOfT}>.baz is Foo`);
+        expect$.Expect.isFalse(function_subtype_local4_test.Bar.is(baz), dart.str`C<${nameOfT}>.baz is Bar`);
+        expect$.Expect.equals(expectedResult, function_subtype_local4_test.Baz.is(baz), dart.str`C<${nameOfT}>.baz is Baz`);
+        expect$.Expect.isFalse(function_subtype_local4_test.Boz.is(baz), dart.str`C<${nameOfT}>.baz is Boz`);
+      }
+    }
+    dart.addTypeTests(C);
+    dart.setSignature(C, {
+      methods: () => ({test: dart.definiteFunctionType(dart.void, [core.String, core.bool])})
+    });
+    return C;
+  });
+  function_subtype_local4_test.C = C();
+  function_subtype_local4_test.D$ = dart.generic((S, T) => {
+    class D extends function_subtype_local4_test.C$(T) {}
+    return D;
+  });
+  function_subtype_local4_test.D = D();
+  function_subtype_local4_test.main = function() {
+    new (DOfString$bool())().test('bool', true);
+    new (DOfbool$int())().test('int', false);
+    new function_subtype_local4_test.D().test('dynamic', true);
+  };
+  dart.fn(function_subtype_local4_test.main, VoidTodynamic());
+  // Exports:
+  exports.function_subtype_local4_test = function_subtype_local4_test;
+});