Removed dynamic_cast that is not supported in embedded environments and added custom type info to arrays.

Change-Id: I44a8546c59f35ff8ecadd925e801f21a94ebdd87
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
Reviewed-by: Pasi Keränen <pasi.keranen@digia.com>