Check in codegen test expectations.

test/codegen/expect/language/unary2_test.js

Index: test/codegen/expect/language/unary2_test.js
diff --git a/test/codegen/expect/language/unary2_test.js b/test/codegen/expect/language/unary2_test.js
new file mode 100644
index 0000000000000000000000000000000000000000..d435795fdc28b44469d3a1a6b62361e826c5a0d6
--- /dev/null
+++ b/test/codegen/expect/language/unary2_test.js
@@ -0,0 +1,37 @@
+dart_library.library('language/unary2_test', null, /* Imports */[
+  'dart_sdk',
+  'expect'
+], function load__unary2_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 unary2_test = Object.create(null);
+  let VoidTodynamic = () => (VoidTodynamic = dart.constFn(dart.definiteFunctionType(dart.dynamic, [])))();
+  unary2_test.UnaryTest = class UnaryTest extends core.Object {
+    static foo() {
+      return -4;
+    }
+    static moo() {
+      return 5;
+    }
+    static testMain() {
+      expect$.Expect.equals(1, dart.dsend(unary2_test.UnaryTest.foo(), '+', unary2_test.UnaryTest.moo()));
+    }
+  };
+  dart.setSignature(unary2_test.UnaryTest, {
+    statics: () => ({
+      foo: dart.definiteFunctionType(dart.dynamic, []),
+      moo: dart.definiteFunctionType(dart.dynamic, []),
+      testMain: dart.definiteFunctionType(dart.dynamic, [])
+    }),
+    names: ['foo', 'moo', 'testMain']
+  });
+  unary2_test.main = function() {
+    unary2_test.UnaryTest.testMain();
+  };
+  dart.fn(unary2_test.main, VoidTodynamic());
+  // Exports:
+  exports.unary2_test = unary2_test;
+});