Check in codegen test expectations.

test/codegen/expect/corelib/double_round4_test.js

Index: test/codegen/expect/corelib/double_round4_test.js
diff --git a/test/codegen/expect/corelib/double_round4_test.js b/test/codegen/expect/corelib/double_round4_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..e3a3bb1a22f116532e0385f6cf6999c1fa9ea692
--- /dev/null
+++ b/test/codegen/expect/corelib/double_round4_test.js
@@ -0,0 +1,41 @@
+dart_library.library('corelib/double_round4_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__double_round4_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_round4_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  double_round4_test.main = function() {
+    expect$.Expect.equals(4503599627370496, 4503599627370496.0[dartx.round]());
+    expect$.Expect.equals(4503599627370497, 4503599627370497.0[dartx.round]());
+    expect$.Expect.equals(4503599627370498, 4503599627370498.0[dartx.round]());
+    expect$.Expect.equals(4503599627370499, 4503599627370499.0[dartx.round]());
+    expect$.Expect.equals(9007199254740991, 9007199254740991.0[dartx.round]());
+    expect$.Expect.equals(9007199254740992, 9007199254740992.0[dartx.round]());
+    expect$.Expect.equals(-4503599627370496, (-4503599627370496.0)[dartx.round]());
+    expect$.Expect.equals(-4503599627370497, (-4503599627370497.0)[dartx.round]());
+    expect$.Expect.equals(-4503599627370498, (-4503599627370498.0)[dartx.round]());
+    expect$.Expect.equals(-4503599627370499, (-4503599627370499.0)[dartx.round]());
+    expect$.Expect.equals(-9007199254740991, (-9007199254740991.0)[dartx.round]());
+    expect$.Expect.equals(-9007199254740992, (-9007199254740992.0)[dartx.round]());
+    expect$.Expect.isTrue(typeof 4503599627370496.0[dartx.round]() == 'number');
+    expect$.Expect.isTrue(typeof 4503599627370497.0[dartx.round]() == 'number');
+    expect$.Expect.isTrue(typeof 4503599627370498.0[dartx.round]() == 'number');
+    expect$.Expect.isTrue(typeof 4503599627370499.0[dartx.round]() == 'number');
+    expect$.Expect.isTrue(typeof 9007199254740991.0[dartx.round]() == 'number');
+    expect$.Expect.isTrue(typeof 9007199254740992.0[dartx.round]() == 'number');
+    expect$.Expect.isTrue(typeof (-4503599627370496.0)[dartx.round]() == 'number');
+    expect$.Expect.isTrue(typeof (-4503599627370497.0)[dartx.round]() == 'number');
+    expect$.Expect.isTrue(typeof (-4503599627370498.0)[dartx.round]() == 'number');
+    expect$.Expect.isTrue(typeof (-4503599627370499.0)[dartx.round]() == 'number');
+    expect$.Expect.isTrue(typeof (-9007199254740991.0)[dartx.round]() == 'number');
+    expect$.Expect.isTrue(typeof (-9007199254740992.0)[dartx.round]() == 'number');
+  };
+  dart.fn(double_round4_test.main, VoidTodynamic());
+  // Exports:
+  exports.double_round4_test = double_round4_test;
+});