[inspector] Refactor protocol-test.js

test/inspector/runtime/clear-of-command-line-api.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.log("Tests that CommandLineAPI is presented only while evaluation.");
+let {session, contextGroup, Protocol} = InspectorTest.start("Tests that CommandLineAPI is presented only while evaluation.");
 
-InspectorTest.addScript(
+contextGroup.addScript(
 `
 var methods = ["dir","dirxml","profile","profileEnd","clear","table","keys","values","debug","undebug","monitor","unmonitor","inspect","copy"];
 var window = this;
 function presentedAPIMethods()
 {
     var methodCount = 0;
     for (var method of methods) {
         try {
             if (eval("window." + method + "&&" + method + ".toString ? " + method + ".toString().indexOf(\\"[Command Line API]\\") !== -1 : false"))
                 ++methodCount;
@@ skipping 90 matching lines @@
     .then(() => evaluate("presentedAPIMethods()", false))
     .then((result) => InspectorTest.logMessage(result));
 }
 
 function dumpDir()
 {
   // Should always be presented.
   return evaluate("dir", false)
     .then((result) => InspectorTest.logMessage(result));
 }