Add  specs to test for Fixnum/Bignum values used as :pointer arguments
Add  specs to test for Fixnum/Bignum values used as :pointer arguments

yghannam/ffi,majioa/ffi,ffi/ffi,majioa/ffi,majioa/ffi,tduehr/ffi,tduehr/ffi,ferventcoder/ffi,MikaelSmith/ffi,tduehr/ffi,mvz/ffi,ffi/ffi,tduehr/ffi,mvz/ffi,MikaelSmith/ffi,MikaelSmith/ffi,yghannam/ffi,mvz/ffi,ferventcoder/ffi,sparkchaser/ffi,yghannam/ffi,ferventcoder/ffi,mvz/ffi,MikaelSmith/ffi,sparkchaser/ffi,ffi/ffi,sparkchaser/ffi,yghannam/ffi,yghannam/ffi,ferventcoder/ffi,majioa/ffi,sparkchaser/ffi