[inspector] Refactor protocol-test.js

test/inspector/runtime/internal-properties.js

Index: test/inspector/runtime/internal-properties.js
diff --git a/test/inspector/runtime/internal-properties.js b/test/inspector/runtime/internal-properties.js
index 2ee4c459fa1a352513b58b427079e76a0d8d6a95..1e42f917ea7db485361050edaf7f03aa012a4153 100644
--- a/test/inspector/runtime/internal-properties.js
+++ b/test/inspector/runtime/internal-properties.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('Checks internal properties in Runtime.getProperties output');
+let {session, contextGroup, Protocol} = InspectorTest.start('Checks internal properties in Runtime.getProperties output');
 
-InspectorTest.addScript(`
+contextGroup.addScript(`
 function* foo() {
   yield 1;
 }