Fixing vector sizing bug in FFI for functions of 6 or more arguments.
Fixing vector sizing bug in FFI for functions of 6 or more arguments.

norton/chibi-scheme,norton/chibi-scheme,holmescn/chibi-scheme,holmescn/chibi-scheme,holmescn/chibi-scheme,holmescn/chibi-scheme,norton/chibi-scheme,holmescn/chibi-scheme,norton/chibi-scheme,norton/chibi-scheme,norton/chibi-scheme