Check in codegen test expectations.

test/codegen/expect/language/function_subtype_typearg0_test.js

Index: test/codegen/expect/language/function_subtype_typearg0_test.js
diff --git a/test/codegen/expect/language/function_subtype_typearg0_test.js b/test/codegen/expect/language/function_subtype_typearg0_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..ff6e11d99e231898f36c2f9a45a073079a2edfca
--- /dev/null
+++ b/test/codegen/expect/language/function_subtype_typearg0_test.js
@@ -0,0 +1,56 @@
+dart_library.library('language/function_subtype_typearg0_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__function_subtype_typearg0_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_typearg0_test = Object.create(null);
+  let A = () => (A = dart.constFn(function_subtype_typearg0_test.A$()))();
+  let AOfFoo = () => (AOfFoo = dart.constFn(function_subtype_typearg0_test.A$(function_subtype_typearg0_test.Foo)))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  let dynamicTovoid = () => (dynamicTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [dart.dynamic])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let dynamicTodynamic = () => (dynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic])))();
+  function_subtype_typearg0_test.Foo = dart.typedef('Foo', () => dart.functionType(dart.void, []));
+  function_subtype_typearg0_test.A$ = dart.generic(T => {
+    class A extends core.Object {
+      foo(a) {
+        return T.is(a);
+      }
+    }
+    dart.addTypeTests(A);
+    dart.setSignature(A, {
+      methods: () => ({foo: dart.definiteFunctionType(core.bool, [dart.dynamic])})
+    });
+    return A;
+  });
+  function_subtype_typearg0_test.A = A();
+  function_subtype_typearg0_test.bar1 = function() {
+  };
+  dart.fn(function_subtype_typearg0_test.bar1, VoidTovoid());
+  function_subtype_typearg0_test.bar2 = function(i) {
+  };
+  dart.fn(function_subtype_typearg0_test.bar2, dynamicTovoid());
+  function_subtype_typearg0_test.main = function() {
+    function bar3() {
+    }
+    dart.fn(bar3, VoidTovoid());
+    function bar4(i) {
+    }
+    dart.fn(bar4, dynamicTovoid());
+    expect$.Expect.isTrue(new (AOfFoo())().foo(function_subtype_typearg0_test.bar1));
+    expect$.Expect.isFalse(new (AOfFoo())().foo(function_subtype_typearg0_test.bar2));
+    expect$.Expect.isTrue(new (AOfFoo())().foo(bar3));
+    expect$.Expect.isFalse(new (AOfFoo())().foo(bar4));
+    expect$.Expect.isTrue(new (AOfFoo())().foo(dart.fn(() => {
+    }, VoidTodynamic())));
+    expect$.Expect.isFalse(new (AOfFoo())().foo(dart.fn(i => {
+    }, dynamicTodynamic())));
+  };
+  dart.fn(function_subtype_typearg0_test.main, VoidTovoid());
+  // Exports:
+  exports.function_subtype_typearg0_test = function_subtype_typearg0_test;
+});