[inspector] Refactor protocol-test.js

test/inspector/debugger/set-script-source-exception.js

Index: test/inspector/debugger/set-script-source-exception.js
diff --git a/test/inspector/debugger/set-script-source-exception.js b/test/inspector/debugger/set-script-source-exception.js
index d3082789f2a10e5749966e1847b0ecf46dc3452e..627aa7ec1e238ba38bc1cd6d5ff368f37bc37d98 100644
--- a/test/inspector/debugger/set-script-source-exception.js
+++ b/test/inspector/debugger/set-script-source-exception.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('Check that setScriptSource completes correctly when an exception is thrown.');
+let {session, contextGroup, Protocol} = InspectorTest.start('Check that setScriptSource completes correctly when an exception is thrown.');
 
 Protocol.Debugger.enable();
 
@@ -18,6 +18,6 @@ InspectorTest.runTestSuite([
       .then(message => Protocol.Debugger.setScriptSource({ scriptId: message.params.scriptId, scriptSource: 'a # b' }))
       .then(InspectorTest.logMessage)
       .then(next);
-    InspectorTest.addScript('function foo() {}');
+    contextGroup.addScript('function foo() {}');
   }
 ]);