[inspector] Refactor protocol-test.js

test/inspector/json-parse.js

Index: test/inspector/json-parse.js
diff --git a/test/inspector/json-parse.js b/test/inspector/json-parse.js
index 00ad69b8416ecaf123f1741adc71f474269563ba..92ec84bc5e54f4511cf88171d7de9c1430076930 100644
--- a/test/inspector/json-parse.js
+++ b/test/inspector/json-parse.js
@@ -2,9 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-const id = ++InspectorTest.session._requestId;
+let {session, contextGroup, Protocol} = InspectorTest.start('Tests that json parser on backend correctly works with unicode');
+
+const id = 100500;
 var command = { "method": "Runtime.evaluate", "params": { expression: "\"!!!\"" }, "id": id };
-InspectorTest.session.sendRawCommand(id, JSON.stringify(command).replace("!!!", "\\u041F\\u0440\\u0438\\u0432\\u0435\\u0442 \\u043C\\u0438\\u0440"), step2);
+session.sendRawCommand(id, JSON.stringify(command).replace("!!!", "\\u041F\\u0440\\u0438\\u0432\\u0435\\u0442 \\u043C\\u0438\\u0440"), step2);
 
 function step2(msg)
 {