[inspector] removed kDebugPromiseCollected event

test/inspector/debugger/collect-obsolete-async-tasks.js

Index: test/inspector/debugger/collect-obsolete-async-tasks.js
diff --git a/test/inspector/debugger/collect-obsolete-async-tasks.js b/test/inspector/debugger/collect-obsolete-async-tasks.js
new file mode 100644
index 0000000000000000000000000000000000000000..5e54eb014bc60775bf0dfa307acd4e78e8387f13
--- /dev/null
+++ b/test/inspector/debugger/collect-obsolete-async-tasks.js
@@ -0,0 +1,35 @@
+// Copyright 2017 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.
+
+InspectorTest.log('Checks that we collect obsolete async tasks with async stacks.');
+
+InspectorTest.addScript(`
+function test() {
+  setMaxAsyncTaskStacks(128);
+  var p = Promise.resolve();
+
+  dumpAsyncTaskStacksStateForTest();
+  setMaxAsyncTaskStacks(128);
+  dumpAsyncTaskStacksStateForTest();
+
+  p.then(() => 42).then(() => 239);
+
+  dumpAsyncTaskStacksStateForTest();
+  setMaxAsyncTaskStacks(128);
+  dumpAsyncTaskStacksStateForTest();
+
+  setTimeout(() => 42, 0);
+
+  dumpAsyncTaskStacksStateForTest();
+  setMaxAsyncTaskStacks(128);
+  dumpAsyncTaskStacksStateForTest();
+}
+`);
+
+(async function test() {
+  Protocol.Debugger.enable();
+  Protocol.Debugger.setAsyncCallStackDepth({maxDepth: 128});
+  await Protocol.Runtime.evaluate({expression: 'test()'});
+  InspectorTest.completeTest();
+})()