Check in codegen test expectations.

test/codegen/expect/language/while_test.js

Index: test/codegen/expect/language/while_test.js
diff --git a/test/codegen/expect/language/while_test.js b/test/codegen/expect/language/while_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..e2c01997f10758a882174bba4d985db5be5f1013
--- /dev/null
+++ b/test/codegen/expect/language/while_test.js
@@ -0,0 +1,71 @@
+dart_library.library('language/while_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__while_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 while_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  while_test.Helper = class Helper extends core.Object {
+    static f1(b) {
+      while (dart.test(b))
+        return 1;
+      return 2;
+    }
+    static f2(b) {
+      while (dart.test(b)) {
+        return 1;
+      }
+      return 2;
+    }
+    static f3(n) {
+      let i = 0;
+      while (i < dart.notNull(n)) {
+        i++;
+      }
+      return i;
+    }
+    static f4() {
+      let i = 0;
+      while (++i < 3) {
+      }
+      return i;
+    }
+  };
+  dart.setSignature(while_test.Helper, {
+    statics: () => ({
+      f1: dart.definiteFunctionType(core.int, [core.bool]),
+      f2: dart.definiteFunctionType(core.int, [core.bool]),
+      f3: dart.definiteFunctionType(core.int, [core.int]),
+      f4: dart.definiteFunctionType(core.int, [])
+    }),
+    names: ['f1', 'f2', 'f3', 'f4']
+  });
+  while_test.WhileTest = class WhileTest extends core.Object {
+    static testMain() {
+      expect$.Expect.equals(1, while_test.Helper.f1(true));
+      expect$.Expect.equals(2, while_test.Helper.f1(false));
+      expect$.Expect.equals(1, while_test.Helper.f2(true));
+      expect$.Expect.equals(2, while_test.Helper.f2(false));
+      expect$.Expect.equals(0, while_test.Helper.f3(-2));
+      expect$.Expect.equals(0, while_test.Helper.f3(-1));
+      expect$.Expect.equals(0, while_test.Helper.f3(0));
+      expect$.Expect.equals(1, while_test.Helper.f3(1));
+      expect$.Expect.equals(2, while_test.Helper.f3(2));
+      expect$.Expect.equals(3, while_test.Helper.f4());
+    }
+  };
+  dart.setSignature(while_test.WhileTest, {
+    statics: () => ({testMain: dart.definiteFunctionType(dart.dynamic, [])}),
+    names: ['testMain']
+  });
+  while_test.main = function() {
+    while_test.WhileTest.testMain();
+  };
+  dart.fn(while_test.main, VoidTodynamic());
+  // Exports:
+  exports.while_test = while_test;
+});