Check in codegen test expectations.

test/codegen/expect/language/div_by_zero_test.js

Index: test/codegen/expect/language/div_by_zero_test.js
diff --git a/test/codegen/expect/language/div_by_zero_test.js b/test/codegen/expect/language/div_by_zero_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..eabed95d4568305ca8fcb12d6e022c02bb80687d
--- /dev/null
+++ b/test/codegen/expect/language/div_by_zero_test.js
@@ -0,0 +1,47 @@
+dart_library.library('language/div_by_zero_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__div_by_zero_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 div_by_zero_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  div_by_zero_test.DivByZeroTest = class DivByZeroTest extends core.Object {
+    static divBy(a, b) {
+      let result = dart.notNull(a) / dart.notNull(b);
+      return 1.0 * result;
+    }
+    static moustacheDivBy(a, b) {
+      let val = null;
+      try {
+        val = (dart.notNull(a) / dart.notNull(b))[dartx.truncate]();
+      } catch (e) {
+        return true;
+      }
+
+      core.print(dart.str`Should not have gotten: ${val}`);
+      return false;
+    }
+    static testMain() {
+      expect$.Expect.isTrue(div_by_zero_test.DivByZeroTest.divBy(0, 0)[dartx.isNaN]);
+      expect$.Expect.isTrue(div_by_zero_test.DivByZeroTest.moustacheDivBy(0, 0));
+    }
+  };
+  dart.setSignature(div_by_zero_test.DivByZeroTest, {
+    statics: () => ({
+      divBy: dart.definiteFunctionType(core.double, [core.int, core.int]),
+      moustacheDivBy: dart.definiteFunctionType(core.bool, [core.int, core.int]),
+      testMain: dart.definiteFunctionType(dart.void, [])
+    }),
+    names: ['divBy', 'moustacheDivBy', 'testMain']
+  });
+  div_by_zero_test.main = function() {
+    div_by_zero_test.DivByZeroTest.testMain();
+  };
+  dart.fn(div_by_zero_test.main, VoidTodynamic());
+  // Exports:
+  exports.div_by_zero_test = div_by_zero_test;
+});