Add support for QtInfoMsg

Replace the generic default label by the new QtInfoMsg enum, which got
added to Qt5Core.

Change-Id: Ia56d24f29519d8f9c8f184d74b77292ecbb0bd4b
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/xmlpatterns/api/qcoloringmessagehandler.cpp

@@ -130,10 +130,10 @@ void ColoringMessageHandler::handleMessage(QtMsgType type,
         case QtCriticalMsg:
         /* Fallthrough. */
         case QtDebugMsg:
-        default:
+        case QtInfoMsg:
         {
             Q_ASSERT_X(false, Q_FUNC_INFO,
-                       "message() is not supposed to receive QtCriticalMsg or QtDebugMsg.");
+                       "message() is not supposed to receive QtCriticalMsg, QtInfoMsg or QtDebugMsg.");
             return;
         }
     }