[inspector] test for fixed empty stack processing in console.count

test/inspector/protocol-test.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.
 
 InspectorTest = {};
 InspectorTest._dispatchTable = new Map();
 InspectorTest._requestId = 0;
 InspectorTest._dumpInspectorProtocolMessages = false;
 InspectorTest.eventHandler = {};
 
@@ skipping 117 matching lines @@
       dumpValue(object[i], "    " + prefix, "    " + prefix + "[" + i + "] : ");
     lines.push(prefix + "]");
   }
 
   dumpValue(object, "", title);
   InspectorTest.log(lines.join("\n"));
 }
 
 InspectorTest.completeTest = quit.bind(null);
 
+InspectorTest.completeTestAfterPendingTimeouts = function()
+{
+  InspectorTest.sendCommand("Runtime.evaluate", {
+    expression: "new Promise(resolve => setTimeout(resolve, 0))",
+    awaitPromise: true }, InspectorTest.completeTest);
+}
+
 InspectorTest.evaluateInPage = function(string, callback)
 {
   InspectorTest.sendCommand("Runtime.evaluate", { "expression": string }, function(message) {
     if (message.error) {
       InspectorTest.log("Error while executing '" + string + "': " + message.error.message);
       InspectorTest.completeTest();
     }
     else if (callback)
       callback(message.result.result.value);
   });
@@ skipping 20 matching lines @@
     if (!testSuite.length) {
       InspectorTest.completeTest();
       return;
     }
     var fun = testSuite.shift();
     InspectorTest.log("\nRunning test: " + fun.name);
     fun(nextTest);
   }
   nextTest();
 }