Check in codegen test expectations.

test/codegen/expect/language/for_without_condition_test.js

+dart_library.library('language/for_without_condition_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__for_without_condition_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 for_without_condition_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  for_without_condition_test.main = function() {
+    let i = 0;
+    for (;; i++) {
+      if (i == 0) break;
+      expect$.Expect.fail("Should not enter here");
+    }
+    expect$.Expect.equals(0, i);
+  };
+  dart.fn(for_without_condition_test.main, VoidTodynamic());
+  // Exports:
+  exports.for_without_condition_test = for_without_condition_test;
+});