Corrected types for source location in lists passed to datum->syntax. Corrected types for peek-* functions (which may return EOF). Added type for read-byte.
Corrected types for source location in lists passed to datum->syntax.
Corrected types for peek-* functions (which may return EOF).
Added type for read-byte.

svn: r15137

mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket