Check in codegen test expectations.

test/codegen/expect/language/do_while2_test.js

Index: test/codegen/expect/language/do_while2_test.js
diff --git a/test/codegen/expect/language/do_while2_test.js b/test/codegen/expect/language/do_while2_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..d5770defc77e67542165272089b55113979e7005
--- /dev/null
+++ b/test/codegen/expect/language/do_while2_test.js
@@ -0,0 +1,55 @@
+dart_library.library('language/do_while2_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__do_while2_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 do_while2_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  do_while2_test.a = 42;
+  do_while2_test.foo1 = function() {
+    let i = 0;
+    let saved = null;
+    do {
+      saved = i;
+      i = do_while2_test.a;
+    } while (dart.equals(i, saved));
+    expect$.Expect.equals(0, saved);
+    expect$.Expect.equals(42, i);
+  };
+  dart.fn(do_while2_test.foo1, VoidTodynamic());
+  do_while2_test.foo2 = function() {
+    let i = 0;
+    let saved = null;
+    do {
+      saved = i;
+      i = do_while2_test.a;
+    } while (!dart.equals(i, saved));
+    expect$.Expect.equals(42, saved);
+    expect$.Expect.equals(42, i);
+  };
+  dart.fn(do_while2_test.foo2, VoidTodynamic());
+  do_while2_test.foo3 = function() {
+    let i = 0;
+    let saved = null;
+    do {
+      saved = i;
+      i = do_while2_test.a;
+      if (dart.equals(i, saved)) continue;
+    } while (!dart.equals(i, saved));
+    expect$.Expect.equals(42, saved);
+    expect$.Expect.equals(42, i);
+  };
+  dart.fn(do_while2_test.foo3, VoidTodynamic());
+  do_while2_test.main = function() {
+    do_while2_test.foo1();
+    do_while2_test.foo2();
+    do_while2_test.foo3();
+  };
+  dart.fn(do_while2_test.main, VoidTodynamic());
+  // Exports:
+  exports.do_while2_test = do_while2_test;
+});