Fixed a bug that caused the number of arguments to be calculated incorrectly (arity is the number of non-default arguments, not the number of arguments).
Fixed a bug that caused the number of arguments to be calculated
incorrectly (arity is the number of non-default arguments, not the
number of arguments).

Added implementation for FCALL and CONST.


git-svn-id: 4f0512535da0148cb3b77f508241f32c2b407952@12 97706e15-5354-4c53-a9c4-6d7fdcecbee1

cout/ruby-libjit,cout/ruby-libjit