Check in codegen test expectations.

test/codegen/expect/language/return_in_loop_test.js

Index: test/codegen/expect/language/return_in_loop_test.js
diff --git a/test/codegen/expect/language/return_in_loop_test.js b/test/codegen/expect/language/return_in_loop_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..b5e8da4d5d5510bdf634ad254a1af6aa3d645640
--- /dev/null
+++ b/test/codegen/expect/language/return_in_loop_test.js
@@ -0,0 +1,39 @@
+dart_library.library('language/return_in_loop_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__return_in_loop_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 return_in_loop_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  return_in_loop_test.A = class A extends core.Object {
+    foo() {
+      let x = 0;
+      while (true) {
+        if (true) {
+          return 42;
+        } else {
+        }
+        x = core.int._check(this.bar());
+      }
+    }
+    bar() {
+      return 1;
+    }
+  };
+  dart.setSignature(return_in_loop_test.A, {
+    methods: () => ({
+      foo: dart.definiteFunctionType(dart.dynamic, []),
+      bar: dart.definiteFunctionType(dart.dynamic, [])
+    })
+  });
+  return_in_loop_test.main = function() {
+    expect$.Expect.equals(42, new return_in_loop_test.A().foo());
+  };
+  dart.fn(return_in_loop_test.main, VoidTodynamic());
+  // Exports:
+  exports.return_in_loop_test = return_in_loop_test;
+});