[inspector] added reconnect method for tests

test/inspector/debugger/doesnt-step-into-injected-script.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.
 
-print("Check that stepInto at then end of the script go to next user script instead InjectedScriptSource.js.");
+InspectorTest.log("Check that stepInto at then end of the script go to next user script instead InjectedScriptSource.js.");
 
 InspectorTest.addScript(
 `function foo()
 {
     return 239;
 }`);
 
 Protocol.Debugger.enable();
 Protocol.Debugger.onPaused(debuggerPaused);
 Protocol.Runtime.evaluate({ "expression": "(function boo() { setTimeout(foo, 0); debugger; })()" });
 
 var actions = [ "stepInto", "stepInto", "stepInto" ];
 function debuggerPaused(result)
 {
   InspectorTest.log("Stack trace:");
   for (var callFrame of result.params.callFrames)
     InspectorTest.log(callFrame.functionName + ":" + callFrame.location.lineNumber + ":" + callFrame.location.columnNumber);
   InspectorTest.log("");
 
   var action = actions.shift();
   if (!action) {
     Protocol.Debugger.resume().then(InspectorTest.completeTest);
     return;
   }
   InspectorTest.log("Perform " + action);
   Protocol.Debugger[action]();
 }