QmlProfiler: fix dangling pointer in Engine

Task-number: QTCREATORBUG-9391

Change-Id: Ib2ea66bd5694046577a0b5a0e2f611f3ffba0238
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
QmlConsole: Fix bug: Jump to location in editor

Since the file path starts with file:/// use QUrl to
get local file name.

Task-number: QTCREATORBUG-9337
Change-Id: Icf591fdcab8cb626cfbf844c451a2c87c07b853a
Reviewed-by: Kai Koehne <kai.koehne@digia.com>