[inspector] Refactor protocol-test.js

test/inspector/debugger/script-end-location.js

Index: test/inspector/debugger/script-end-location.js
diff --git a/test/inspector/debugger/script-end-location.js b/test/inspector/debugger/script-end-location.js
index cdfff8cda6a76bd8d22170266acc3db9fb2542b2..57d12350e0a8eaa55c29f22fbf3563ac5a5d1744 100644
--- a/test/inspector/debugger/script-end-location.js
+++ b/test/inspector/debugger/script-end-location.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 we report correct endLine, endColumn and source for scripts.');
+let {session, contextGroup, Protocol} = InspectorTest.start('Checks that we report correct endLine, endColumn and source for scripts.');
 
 var sources = [
 '',
@@ -27,7 +27,7 @@ var sources = [
 (async function test() {
   Protocol.Debugger.enable();
   for (let source of sources) {
-    InspectorTest.addScript(source);
+    contextGroup.addScript(source);
     var message = await Protocol.Debugger.onceScriptParsed();
     var inspectorSource = (await Protocol.Debugger.getScriptSource({ scriptId: message.params.scriptId })).result.scriptSource;
     var lines = source.split('\n');