[inspector] Refactor protocol-test.js

test/inspector/runtime/get-properties.js

 // Copyright 2016 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 Runtime.getProperties method');
+let {session, contextGroup, Protocol} = InspectorTest.start('Checks Runtime.getProperties method');
 
 InspectorTest.runAsyncTestSuite([
   async function testObject5() {
     let objectId = (await Protocol.Runtime.evaluate({
       expression: '(function(){var r = Object(5); r.foo = \'cat\';return r;})()'
     })).result.result.objectId;
     let props = await Protocol.Runtime.getProperties({ objectId, ownProperties: true });
     logGetPropertiesResult(props.result);
   },
 
@@ skipping 73 matching lines @@
       var p = internalPropertyArray[i];
       var v = p.value;
       InspectorTest.log("  " + p.name + " " + v.type + " " + v.value);
     }
   }
 
   function NamedThingComparator(o1, o2) {
     return o1.name === o2.name ? 0 : (o1.name < o2.name ? -1 : 1);
   }
 }