Check in codegen test expectations.

test/codegen/expect/language/double_modulo_test.js

Index: test/codegen/expect/language/double_modulo_test.js
diff --git a/test/codegen/expect/language/double_modulo_test.js b/test/codegen/expect/language/double_modulo_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..6d39a114df2ca495f0aeec95fe1d89f4bf06484a
--- /dev/null
+++ b/test/codegen/expect/language/double_modulo_test.js
@@ -0,0 +1,29 @@
+dart_library.library('language/double_modulo_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__double_modulo_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_modulo_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  let dynamicAnddynamicTodynamic = () => (dynamicAnddynamicTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [dart.dynamic, dart.dynamic])))();
+  double_modulo_test.main = function() {
+    let k = -0.33333;
+    let firstResPos = core.double._check(double_modulo_test.doMod(k, 1.0));
+    let firstResNeg = core.double._check(double_modulo_test.doMod(k, -1.0));
+    for (let i = 0; i < 20; i++) {
+      expect$.Expect.equals(firstResPos, double_modulo_test.doMod(k, 1.0));
+      expect$.Expect.equals(firstResNeg, double_modulo_test.doMod(k, -1.0));
+    }
+  };
+  dart.fn(double_modulo_test.main, VoidTodynamic());
+  double_modulo_test.doMod = function(a, b) {
+    return dart.dsend(a, '%', b);
+  };
+  dart.fn(double_modulo_test.doMod, dynamicAnddynamicTodynamic());
+  // Exports:
+  exports.double_modulo_test = double_modulo_test;
+});