Add method expand-to-foreign-dyn-indirect foreign-type-alias
Add method expand-to-foreign-dyn-indirect foreign-type-alias

Add method expand-to-foreign-dyn-indirect for type foreign-type-alias so that foreign-string-type will be expanded correctly (as a pointer).

cffi/cffi,cffi/cffi,stassats/cffi,3b/cffi,attila-lendvai/cffi,dkochmanski/cffi,dkochmanski/cffi,cffi/cffi,attila-lendvai/cffi,3b/cffi,dkochmanski/cffi,stassats/cffi,stassats/cffi,mcna/cffi,3b/cffi,mcna/cffi