[test] add FunctionMirror and PromiseMirror tests for async functions

test/mjsunit/harmony/mirror-async-function.js

Index: test/mjsunit/harmony/mirror-async-function.js
diff --git a/test/mjsunit/mirror-function.js b/test/mjsunit/harmony/mirror-async-function.js
similarity index 51%
copy from test/mjsunit/mirror-function.js
copy to test/mjsunit/harmony/mirror-async-function.js
index 88106a2ed0fa685fcd8f374345711df20c80fd74..b4ba8314a535f50895a1366af971159c79ccc0eb 100644
--- a/test/mjsunit/mirror-function.js
+++ b/test/mjsunit/harmony/mirror-async-function.js
@@ -1,33 +1,12 @@
-// Copyright 2008 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
-// Flags: --expose-debug-as debug
+// Flags: --expose-debug-as debug --harmony-async-await --allow-natives-syntax
 // Test the mirror object for functions.
 
+var AsyncFunction = (async function() {}).constructor;
+
 function MirrorRefCache(json_refs) {
   var tmp = eval('(' + json_refs + ')');
   this.refs_ = [];
@@ -74,7 +53,8 @@ function testFunctionMirror(f) {
   assertEquals('function', fromJSON.type);
   assertEquals('Function', fromJSON.className);
   assertEquals('function', refs.lookup(fromJSON.constructorFunction.ref).type);
-  assertEquals('Function', refs.lookup(fromJSON.constructorFunction.ref).name);
+  assertEquals('AsyncFunction',
+               refs.lookup(fromJSON.constructorFunction.ref).name);
   assertTrue(fromJSON.resolved);
   assertEquals(f.name, fromJSON.name);
   assertEquals(f.toString(), fromJSON.source);
@@ -85,7 +65,12 @@ function testFunctionMirror(f) {
 
 
 // Test a number of different functions.
-testFunctionMirror(function(){});
-testFunctionMirror(function a(){return 1;});
-testFunctionMirror(Math.sin);
-testFunctionMirror((function(){}).bind({}), "Object");
+testFunctionMirror(async function(){});
+testFunctionMirror(AsyncFunction());
+testFunctionMirror(new AsyncFunction());
+testFunctionMirror(async() => {});
+testFunctionMirror(async function a(){return 1;});
+testFunctionMirror(({ async foo() {} }).foo);
+testFunctionMirror((async function(){}).bind({}), "Object");
+
+%RunMicrotasks();