[inspector] Refactor protocol-test.js

test/inspector/debugger/script-on-after-compile.js

Index: test/inspector/debugger/script-on-after-compile.js
diff --git a/test/inspector/debugger/script-on-after-compile.js b/test/inspector/debugger/script-on-after-compile.js
index 6a5a55b5ffd097e8865fbacdd2f03e75cecb171e..544dbaaae2af1ce0bd02b4721ed1025b3e202728 100644
--- a/test/inspector/debugger/script-on-after-compile.js
+++ b/test/inspector/debugger/script-on-after-compile.js
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-InspectorTest.log("Checks that inspector correctly process compiled scripts");
+let {session, contextGroup, Protocol} = InspectorTest.start("Checks that inspector correctly process compiled scripts");
 
 function addScripts() {
   // sourceURL in the same line