Task: Update Task to use Utils::FileName and Core::Id

Use Utils::FileName and Core::Id in Task structure.

Change-Id: Ia0ed459f86df36ffe547abde7c240b0ac409bcf5
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

src/plugins/projectexplorer/copytaskhandler.cpp

@@ -63,7 +63,7 @@ void CopyTaskHandler::handle(const ProjectExplorer::Task &task)
         break;
     }
 
-    QApplication::clipboard()->setText(QDir::toNativeSeparators(task.file) + QLatin1Char(':') +
+    QApplication::clipboard()->setText(task.file.toUserOutput() + QLatin1Char(':') +
                                        QString::number(task.line) + QLatin1String(": ")
                                        + type + task.description);
 }