Check in codegen test expectations.

test/codegen/expect/language/assign_op_test.js

Index: test/codegen/expect/language/assign_op_test.js
diff --git a/test/codegen/expect/language/assign_op_test.js b/test/codegen/expect/language/assign_op_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..c25c290bbc28a414264ce8b7d72a82aaa3a19c56
--- /dev/null
+++ b/test/codegen/expect/language/assign_op_test.js
@@ -0,0 +1,102 @@
+dart_library.library('language/assign_op_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__assign_op_test(exports, dart_sdk, expect) {
+  'use strict';
+  const core = dart_sdk.core;
+  const _interceptors = dart_sdk._interceptors;
+  const dart = dart_sdk.dart;
+  const dartx = dart_sdk.dartx;
+  const expect$ = expect.expect;
+  const assign_op_test = Object.create(null);
+  let JSArrayOfint = () => (JSArrayOfint = dart.constFn(_interceptors.JSArray$(core.int)))();
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  assign_op_test.AssignOpTest = class AssignOpTest extends core.Object {
+    new() {
+      this.instf = null;
+    }
+    static testMain() {
+      let b = 0;
+      b = b + 1;
+      expect$.Expect.equals(1, b);
+      b = b * 5;
+      expect$.Expect.equals(5, b);
+      b = b - 1;
+      expect$.Expect.equals(4, b);
+      b = (b / 2)[dartx.truncate]();
+      expect$.Expect.equals(2, b);
+      assign_op_test.AssignOpTest.f = 0;
+      assign_op_test.AssignOpTest.f = dart.dsend(assign_op_test.AssignOpTest.f, '+', 1);
+      expect$.Expect.equals(1, assign_op_test.AssignOpTest.f);
+      assign_op_test.AssignOpTest.f = dart.dsend(assign_op_test.AssignOpTest.f, '*', 5);
+      expect$.Expect.equals(5, assign_op_test.AssignOpTest.f);
+      assign_op_test.AssignOpTest.f = dart.dsend(assign_op_test.AssignOpTest.f, '-', 1);
+      expect$.Expect.equals(4, assign_op_test.AssignOpTest.f);
+      assign_op_test.AssignOpTest.f = dart.dsend(assign_op_test.AssignOpTest.f, '~/', 2);
+      expect$.Expect.equals(2, assign_op_test.AssignOpTest.f);
+      assign_op_test.AssignOpTest.f = dart.dsend(assign_op_test.AssignOpTest.f, '/', 4);
+      expect$.Expect.equals(0.5, assign_op_test.AssignOpTest.f);
+      assign_op_test.AssignOpTest.f = 0;
+      assign_op_test.AssignOpTest.f = dart.dsend(assign_op_test.AssignOpTest.f, '+', 1);
+      expect$.Expect.equals(1, assign_op_test.AssignOpTest.f);
+      assign_op_test.AssignOpTest.f = dart.dsend(assign_op_test.AssignOpTest.f, '*', 5);
+      expect$.Expect.equals(5, assign_op_test.AssignOpTest.f);
+      assign_op_test.AssignOpTest.f = dart.dsend(assign_op_test.AssignOpTest.f, '-', 1);
+      expect$.Expect.equals(4, assign_op_test.AssignOpTest.f);
+      assign_op_test.AssignOpTest.f = dart.dsend(assign_op_test.AssignOpTest.f, '~/', 2);
+      expect$.Expect.equals(2, assign_op_test.AssignOpTest.f);
+      assign_op_test.AssignOpTest.f = dart.dsend(assign_op_test.AssignOpTest.f, '/', 4);
+      expect$.Expect.equals(0.5, assign_op_test.AssignOpTest.f);
+      let o = new assign_op_test.AssignOpTest();
+      o.instf = 0;
+      o.instf = dart.dsend(o.instf, '+', 1);
+      expect$.Expect.equals(1, o.instf);
+      o.instf = dart.dsend(o.instf, '*', 5);
+      expect$.Expect.equals(5, o.instf);
+      o.instf = dart.dsend(o.instf, '-', 1);
+      expect$.Expect.equals(4, o.instf);
+      o.instf = dart.dsend(o.instf, '~/', 2);
+      expect$.Expect.equals(2, o.instf);
+      o.instf = dart.dsend(o.instf, '/', 4);
+      expect$.Expect.equals(0.5, o.instf);
+      let x = 255;
+      x = x[dartx['>>']](3);
+      expect$.Expect.equals(31, x);
+      x = x << 3 >>> 0;
+      expect$.Expect.equals(248, x);
+      x = (x | 3840) >>> 0;
+      expect$.Expect.equals(4088, x);
+      x = x & 240;
+      expect$.Expect.equals(240, x);
+      x = (x ^ 17) >>> 0;
+      expect$.Expect.equals(225, x);
+      let y = 100;
+      y = y + (1 << 3);
+      expect$.Expect.equals(108, y);
+      y = y * (2 + 1);
+      expect$.Expect.equals(324, y);
+      y = y - (3 - 2);
+      expect$.Expect.equals(323, y);
+      y = y + 3 * 4;
+      expect$.Expect.equals(335, y);
+      let a = JSArrayOfint().of([1, 2, 3]);
+      let ix = 0;
+      a[dartx.set](ix, (dart.notNull(a[dartx.get](ix)) | 12) >>> 0);
+      expect$.Expect.equals(13, a[dartx.get](ix));
+    }
+  };
+  dart.setSignature(assign_op_test.AssignOpTest, {
+    constructors: () => ({new: dart.definiteFunctionType(assign_op_test.AssignOpTest, [])}),
+    statics: () => ({testMain: dart.definiteFunctionType(dart.dynamic, [])}),
+    names: ['testMain']
+  });
+  assign_op_test.AssignOpTest.f = null;
+  assign_op_test.main = function() {
+    for (let i = 0; i < 20; i++) {
+      assign_op_test.AssignOpTest.testMain();
+    }
+  };
+  dart.fn(assign_op_test.main, VoidTodynamic());
+  // Exports:
+  exports.assign_op_test = assign_op_test;
+});