[inspector] Refactor protocol-test.js

test/inspector/runtime/console-spec.js

 // 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.addScript(`
+let {session, contextGroup, Protocol} = InspectorTest.start('Tests console object and it\'s prototype');
+
+contextGroup.addScript(`
 var self = this;
 function checkPrototype() {
   const prototype1 = Object.getPrototypeOf(console);
   const prototype2 = Object.getPrototypeOf(prototype1);
   if (Object.getOwnPropertyNames(prototype1).length !== 0)
     return "false: The [[Prototype]] must have no properties";
   if (prototype2 !== Object.prototype)
     return "false: The [[Prototype]]'s [[Prototype]] must be %ObjectPrototype%";
   return "true";
 }
@@ skipping 33 matching lines @@
     InspectorTest.log(message.result.result.value);
   },
 
   async function consoleMethodPropertyDescriptor() {
     let message = await Protocol.Runtime.evaluate({
       expression: 'Object.getOwnPropertyDescriptor(console, \'log\')',
       returnByValue: true});
     InspectorTest.logObject(message.result.result.value);
   }
 ]);