Check in codegen test expectations.

test/codegen/expect/language/double_nan_comparison_test.js

Index: test/codegen/expect/language/double_nan_comparison_test.js
diff --git a/test/codegen/expect/language/double_nan_comparison_test.js b/test/codegen/expect/language/double_nan_comparison_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..ce76c976971afe27734d06b8370cab24259d6cab
--- /dev/null
+++ b/test/codegen/expect/language/double_nan_comparison_test.js
@@ -0,0 +1,45 @@
+dart_library.library('language/double_nan_comparison_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__double_nan_comparison_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 double_nan_comparison_test = Object.create(null);
+  let dynamicAnddynamicTodynamic = () => (dynamicAnddynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic, dart.dynamic])))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  double_nan_comparison_test.test_expr = function(a, b) {
+    return !dart.equals(a, b);
+  };
+  dart.fn(double_nan_comparison_test.test_expr, dynamicAnddynamicTodynamic());
+  double_nan_comparison_test.test_conditional = function(a, b) {
+    return !dart.equals(a, b) ? true : false;
+  };
+  dart.fn(double_nan_comparison_test.test_conditional, dynamicAnddynamicTodynamic());
+  double_nan_comparison_test.test_branch = function(a, b) {
+    if (!dart.equals(a, b)) {
+      return true;
+    }
+    return false;
+  };
+  dart.fn(double_nan_comparison_test.test_branch, dynamicAnddynamicTodynamic());
+  double_nan_comparison_test.main = function() {
+    expect$.Expect.equals(true, double_nan_comparison_test.test_expr(0.5, core.double.NAN));
+    for (let i = 0; i < 20; i++)
+      double_nan_comparison_test.test_expr(0.5, core.double.NAN);
+    expect$.Expect.equals(true, double_nan_comparison_test.test_expr(0.5, core.double.NAN));
+    expect$.Expect.equals(true, double_nan_comparison_test.test_conditional(0.5, core.double.NAN));
+    for (let i = 0; i < 20; i++)
+      double_nan_comparison_test.test_conditional(0.5, core.double.NAN);
+    expect$.Expect.equals(true, double_nan_comparison_test.test_conditional(0.5, core.double.NAN));
+    expect$.Expect.equals(true, double_nan_comparison_test.test_branch(0.5, core.double.NAN));
+    for (let i = 0; i < 20; i++)
+      double_nan_comparison_test.test_branch(0.5, core.double.NAN);
+    expect$.Expect.equals(true, double_nan_comparison_test.test_branch(0.5, core.double.NAN));
+  };
+  dart.fn(double_nan_comparison_test.main, VoidTodynamic());
+  // Exports:
+  exports.double_nan_comparison_test = double_nan_comparison_test;
+});