[inspector] Refactor protocol-test.js

test/inspector/runtime/run-script-async.js

Index: test/inspector/runtime/run-script-async.js
diff --git a/test/inspector/runtime/run-script-async.js b/test/inspector/runtime/run-script-async.js
index a99d1efc3e197bbf17d79e6e13588ea067effe64..484ad37ef930023ffc98095e86b26418b2dc5c1c 100644
--- a/test/inspector/runtime/run-script-async.js
+++ b/test/inspector/runtime/run-script-async.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("Tests that Runtime.compileScript and Runtime.runScript work with awaitPromise flag.");
+let {session, contextGroup, Protocol} = InspectorTest.start("Tests that Runtime.compileScript and Runtime.runScript work with awaitPromise flag.");
 
 InspectorTest.runTestSuite([
   function testRunAndCompileWithoutAgentEnable(next)