Bookmarks: Code cosmetics

Spacing, namespaces, indirection, unused code...

Change-Id: Id2b0dccf7be0fc3b78305e16447f97546c6234bf
Reviewed-by: Christian Stenger <christian.stenger@digia.com>
Debugger: Fix display of wchar_t[]

Task-number: QTCREATORBUG-12492
Change-Id: I5668c0727a36a1529d28b36d0361922f7acb3083
Reviewed-by: Christian Stenger <christian.stenger@digia.com>