When an object is selected in the Inspector, the
Editor is updated to show the relevant code.

Task-number: QTCREATORBUG-8246

Change-Id: I4f7fbcccdeb22849682fa72c63e87a78f48d185b
Reviewed-by: hjk <qthjk@ovi.com>
Reviewed-by: Christiaan Janssen <christiaan.janssen@digia.com>