[inspector] Refactor protocol-test.js

test/inspector/runtime/evaluate-with-generate-preview.js

Index: test/inspector/runtime/evaluate-with-generate-preview.js
diff --git a/test/inspector/runtime/evaluate-with-generate-preview.js b/test/inspector/runtime/evaluate-with-generate-preview.js
index 7a70f560bb7a1b584f7eb354ab044b0247c437ad..8ea0ea4faff285e945826b888f59e9adac3bc5f9 100644
--- a/test/inspector/runtime/evaluate-with-generate-preview.js
+++ b/test/inspector/runtime/evaluate-with-generate-preview.js
@@ -2,9 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-InspectorTest.log("Tests that Runtime.evaluate will generate correct previews.");
+let {session, contextGroup, Protocol} = InspectorTest.start("Tests that Runtime.evaluate will generate correct previews.");
 
-InspectorTest.addScript(
+contextGroup.addScript(
 `
 var f1 = function(){};
 
@@ -65,7 +65,7 @@ var objInheritsGetterProperty = {__proto__: parentObj};
 inspector.allowAccessorFormatting(objInheritsGetterProperty);
 `);
 
-InspectorTest.setupInjectedScriptEnvironment();
+contextGroup.setupInjectedScriptEnvironment();
 
 InspectorTest.runTestSuite([
   function testObjectPropertiesPreview(next)