Due to the DWARF parsing having been implemented before proper RzTypes,
it was still generating C-like strings that we then parsed into RzType.
This is fragile and was identified to be a major performance bottleneck
on OpenBSD/sparc64. Instead, we now generate RzTypes directly where
possible.
There are still cases left where strings have to be generated
from those types to be stored in an SDB. This should be changed in the
future too.
rz_type_pointer_of_type() is now also always creating a pointer type of
the given type. Before, it would have failed when the pointee was an
identifier that did not exist in the database. But this may be a valid
case e.g. while still building the database from DWARF and such
sanitization goes beyond what one would expect from
rz_type_pointer_of_type().
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