x86: Use win32 name mangling for fastcall functions
x86: Use win32 name mangling for fastcall functions

Pan7/libffi,Distrotech/libffi,plicease/libffi,s1341/libffi,Pan7/libffi,Pan7/libffi,Distrotech/libffi,bgarrels/libffi,biosbits/libffi,Pan7/libffi,nmav/libffi,bgarrels/libffi,joshtriplett/libffi,s1341/libffi,biosbits/libffi,joshtriplett/libffi,bgarrels/libffi,nmav/libffi,bgarrels/libffi,Distrotech/libffi,rth7680/libffi,plicease/libffi,plicease/libffi,joshtriplett/libffi,nmav/libffi,nmav/libffi,joshtriplett/libffi,rth7680/libffi,rth7680/libffi,biosbits/libffi,plicease/libffi,s1341/libffi,biosbits/libffi,rth7680/libffi,Distrotech/libffi,s1341/libffi