[inspector] added reconnect method for tests

test/inspector/cpu-profiler/coverage.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.
 
 var source =
 `
 function fib(x) {
   if (x < 2) return 1;
   return fib(x-1) + fib(x-2);
 }
 (function iife() {
   return 1;
 })();
 fib(5);
 `;
 
-print("Test collecting code coverage data with Profiler.collectCoverage.");
+InspectorTest.log("Test collecting code coverage data with Profiler.collectCoverage.");
 
 function ClearAndGC() {
   return Protocol.Runtime.evaluate({ expression: "fib = null;" })
            .then(() => Protocol.HeapProfiler.enable())
            .then(() => Protocol.HeapProfiler.collectGarbage())
            .then(() => Protocol.HeapProfiler.disable());
 }
 
 function LogSorted(message) {
   message.result.result.sort((a, b) => parseInt(a.scriptId) - parseInt(b.scriptId));
@@ skipping 63 matching lines @@
       .then(LogSorted)
       .then(Protocol.Profiler.getBestEffortCoverage)
       .then(LogSorted)
       .then(ClearAndGC)
       .then(Protocol.Profiler.stopPreciseCoverage)
       .then(Protocol.Profiler.disable)
       .then(Protocol.Runtime.disable)
       .then(next);
   },
 ]);