Check in codegen test expectations.

test/codegen/expect/language/closure3_test.js

+dart_library.library('language/closure3_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__closure3_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 closure3_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let dynamicAnddynamicTodynamic = () => (dynamicAnddynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic, dart.dynamic])))();
+  let VoidTovoid = () => (VoidTovoid = dart.constFn(dart.definiteFunctionType(dart.void, [])))();
+  let dynamicTobool = () => (dynamicTobool = dart.constFn(dart.definiteFunctionType(core.bool, [dart.dynamic])))();
+  closure3_test.test = function(x, y) {
+    dart.fn(() => {
+      dart.dsend(x, '-', y);
+    }, VoidTodynamic())();
+  };
+  dart.fn(closure3_test.test, dynamicAnddynamicTodynamic());
+  closure3_test.main = function() {
+    expect$.Expect.throws(dart.fn(() => {
+      closure3_test.test(null, 2);
+    }, VoidTovoid()), dart.fn(e => core.NoSuchMethodError.is(e), dynamicTobool()));
+  };
+  dart.fn(closure3_test.main, VoidTodynamic());
+  // Exports:
+  exports.closure3_test = closure3_test;
+});