[inspector] Refactor protocol-test.js

test/inspector/debugger/set-blackbox-patterns.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.addScript(
+let {session, contextGroup, Protocol} = InspectorTest.start('Tests blackboxing by patterns');
+
+contextGroup.addScript(
 `function bar()
 {
     return 42;
 }`);
 
-InspectorTest.addScript(
+contextGroup.addScript(
 `function foo()
 {
     var a = bar();
     return a + 1;
 }
 //# sourceURL=foo.js`);
 
-InspectorTest.addScript(
+contextGroup.addScript(
 `function qwe()
 {
     var a = foo();
     return a + 1;
 }
 //# sourceURL=qwe.js`);
 
-InspectorTest.addScript(
+contextGroup.addScript(
 `function baz()
 {
     var a = qwe();
     return a + 1;
 }
 //# sourceURL=baz.js`);
 
 Protocol.Debugger.enable();
 Protocol.Debugger.setBlackboxPatterns({ patterns: [ "foo([" ] }).then(dumpError);
 
@@ skipping 12 matching lines @@
   var callFrames = message.params.callFrames;
   for (var callFrame of callFrames)
     InspectorTest.log((callFrame.functionName || "(...)") + ":" + (callFrame.location.lineNumber + 1));
   var command = commands.shift();
   if (!command) {
     InspectorTest.completeTest();
     return;
   }
   Protocol.Debugger[command]();
 }