This patch
- improves performance by removing the usage of QRegularExpression for
trivial string operations (this is called 3000 times after configuring
Qt Creator)
- fixes handling of version number like "2.-1" which are the result of
imports with only a major version number like "import QtQuick 2"
Task-number: QTCREATORBUG-25899
Fixes: QTCREATORBUG-26178
Fixes: QTCREATORBUG-26216
Change-Id: Ic792909513f4fe25ac72043645f297ee41890375
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@qt.io>
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
