[inspector] Refactor protocol-test.js

test/inspector/debugger/step-over-caught-exception.js

Index: test/inspector/debugger/step-over-caught-exception.js
diff --git a/test/inspector/debugger/step-over-caught-exception.js b/test/inspector/debugger/step-over-caught-exception.js
index e00dcf27dc9d877e76b1d5d425659a75a1411836..c8e711b0bee2905d58b5ea8885f27cb6059be64d 100644
--- a/test/inspector/debugger/step-over-caught-exception.js
+++ b/test/inspector/debugger/step-over-caught-exception.js
@@ -2,7 +2,9 @@
 // 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 that stepping over caught exception will pause when asked for');
+
+contextGroup.addScript(
 `function testFunction()
 {
   function foo()