[inspector] added reconnect method for tests

test/inspector/debugger/step-into-next-script.js

 // Copyright 2017 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.
 
-print('Debugger breaks in next script after stepOut from previous one.');
+InspectorTest.log('Debugger breaks in next script after stepOut from previous one.');
 
 InspectorTest.addScript(`
 function test() {
   setTimeout('var a = 1;//# sourceURL=timeout1.js', 0);
   setTimeout(foo, 0);
   setTimeout('var a = 3;//# sourceURL=timeout3.js', 0);
   debugger;
 }
 //# sourceURL=foo.js`, 7, 26);
 
@@ skipping 26 matching lines @@
       .then(next);
   },
 
   function testStepInto(next) {
     stepAction = 'stepInto';
     Protocol.Runtime.evaluate({ expression: 'test()' })
       .then(() => InspectorTest.waitPendingTasks())
       .then(next);
   }
 ]);