[inspector] Refactor protocol-test.js

test/inspector/runtime/runtime-evaluate-with-dirty-context.js

 // Copyright 2017 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-InspectorTest.log('Checks that Runtime.evaluate works with dirty context.');
-InspectorTest.setupInjectedScriptEnvironment();
+let {session, contextGroup, Protocol} = InspectorTest.start('Checks that Runtime.evaluate works with dirty context.');
+contextGroup.setupInjectedScriptEnvironment();
 Protocol.Runtime.enable();
 Protocol.Runtime.onConsoleAPICalled(InspectorTest.logMessage);
 Protocol.Runtime.evaluate({expression: 'console.log(42)'})
   .then(InspectorTest.logMessage)
   .then(InspectorTest.completeTest);