[inspector] add async instrumentation for setTimeout in tests

test/inspector/debugger/async-set-timeout.js

+// 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.
+
+print('Checks that async stack contains setTimeout');
+
+InspectorTest.addScript(`
+function foo1() {
+  function inner1() {
+    debugger;
+  }
+  inner1();
+}
+function foo2() {
+  function inner2() {
+    setTimeout(foo1, 0);
+  }
+  inner2();
+}
+function foo3() {
+  function inner3() {
+    setTimeout(foo2, 0);
+  }
+  inner3();
+}
+//# sourceURL=test.js`, 7, 26)

[dgozman, 2016/12/13 17:31:54]

missing semicolon

[kozy, 2016/12/13 18:24:26]

Done.

+
+Protocol.Debugger.enable();
+Protocol.Debugger.setAsyncCallStackDepth({ maxDepth: 128 });
+var urlByScriptId = new Map();
+Protocol.Debugger.onScriptParsed(message => {
+  urlByScriptId.set(message.params.scriptId, message.params.url);

[dgozman, 2016/12/13 17:31:54]

Let's have a helper for this, something like InspectorTest.SetUpScriptUrlMap.

[kozy, 2016/12/13 18:24:26]

Done.

+});
+Protocol.Debugger.onPaused(message => {
+  InspectorTest.logCallFrames(message.params.callFrames, urlByScriptId);
+  var asyncStackTrace = message.params.asyncStackTrace;
+  while (asyncStackTrace) {
+    InspectorTest.log(`-- ${asyncStackTrace.description} --`);
+    InspectorTest.logCallFrames(asyncStackTrace.callFrames);
+    asyncStackTrace = asyncStackTrace.parent;
+  }
+  InspectorTest.log('');
+  Protocol.Debugger.resume();
+});
+Protocol.Runtime.evaluate({ expression: "foo3()//# sourceURL=expr.js" })
+  .then(InspectorTest.completeTest);