[inspector] Refactor protocol-test.js

test/inspector/debugger/get-possible-breakpoints.js

Index: test/inspector/debugger/get-possible-breakpoints.js
diff --git a/test/inspector/debugger/get-possible-breakpoints.js b/test/inspector/debugger/get-possible-breakpoints.js
index 90872f8fa3febfec20e524ac45eedf86a952081f..3232d595743bf11308689e42a650aa6a59bacffe 100644
--- a/test/inspector/debugger/get-possible-breakpoints.js
+++ b/test/inspector/debugger/get-possible-breakpoints.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('Test for Debugger.getPossibleBreakpoints');
+let {session, contextGroup, Protocol} = InspectorTest.start('Test for Debugger.getPossibleBreakpoints');
 
 Protocol.Runtime.enable();
 Protocol.Debugger.enable();
@@ -153,7 +153,7 @@ function foo6() { Promise.resolve().then(() => 42) }`;
 function compileScript(source, origin) {
   var promise = Protocol.Debugger.onceScriptParsed().then(message => message.params.scriptId);
   if (!origin) origin = { name: '', line_offset: 0, column_offset: 0 };
-  InspectorTest.addScript(source, origin.line_offset, origin.column_offset, origin.name);
+  contextGroup.addScript(source, origin.line_offset, origin.column_offset, origin.name);
   return promise;
 }