Synchronize the client with the debug service

The v8 engine is blocked till the client is connected to the service to ensure proper hitting of breakpoints.

Task-number: QTCREATORBUG-5412

Change-Id: Iec772cb547a31fef4cccbd4bb1116699c52d20e5
Reviewed-on: http://codereview.qt.nokia.com/3308
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>

src/plugins/debugger/qml/qmlv8debuggerclient.cpp

@@ -192,7 +192,19 @@ void QmlV8DebuggerClient::interruptInferior()
 
 }
 
-void QmlV8DebuggerClient::shutdownInferior()
+void QmlV8DebuggerClient::connect()
+{
+    QByteArray request;
+
+    JsonInputStream(request) << '{' << INITIALPARAMS ;
+    JsonInputStream(request) << ',' << "command" << ':' << "connect";
+
+    JsonInputStream(request) << '}';
+
+    sendMessage(packMessage(request));
+}
+
+void QmlV8DebuggerClient::disconnect()
 {
     QByteArray request;