[inspector] added reconnect method for tests

test/inspector/debugger/framework-nested-scheduled-break.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('Checks nested scheduled break in framework code.');
+InspectorTest.log('Checks nested scheduled break in framework code.');
 
 InspectorTest.addScript(`
 function frameworkCall(callback) {
   callWithScheduledBreak(doFrameworkWork.bind(null, callback),
     'top-framework-scheduled-break',
     JSON.stringify({ data: 'data for top-framework-scheduled-break' }));
 }
 
 function doFrameworkWork(callback) {
   callWithScheduledBreak(doFrameworkBreak, 'should-not-be-a-reason', '');
@@ skipping 24 matching lines @@
   InspectorTest.log('break reason: ' + message.params.reason);
   InspectorTest.log('break aux data: ' + JSON.stringify(message.params.data || {}, null, '  '));
   InspectorTest.logCallFrames(message.params.callFrames);
   InspectorTest.log('');
   Protocol.Debugger.resume();
 });
 Protocol.Debugger.enable()
   .then(() => Protocol.Debugger.setBlackboxPatterns({patterns: ['framework\.js']}))
   .then(() => Protocol.Runtime.evaluate({ expression: 'testFunction()//# sourceURL=expr.js'}))
   .then(InspectorTest.completeTest);