[inspector] Refactor protocol-test.js

test/inspector/debugger/break-on-exception.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("Check that inspector correctly change break on exception state.");
+let {session, contextGroup, Protocol} = InspectorTest.start("Check that inspector correctly change break on exception state.");
 
-InspectorTest.addScript(`
+contextGroup.addScript(`
 function scheduleUncaughtException()
 {
   setTimeout(throwUncaughtException, 0);
 }
 function throwUncaughtException()
 {
   throw new Error();
 }
 function throwCaughtException()
 {
@@ skipping 44 matching lines @@
 
   function noBreakInEvaluateInSilentMode(next)
   {
     Protocol.Debugger.enable();
     Protocol.Debugger.setPauseOnExceptions({ state: "all" })
       .then(() => Protocol.Runtime.evaluate({ expression: "throwCaughtException()", silent: true }))
       .then(() => Protocol.Debugger.disable())
       .then(next);
   }
 ]);