[parrot/parrot] 872e2c: add cast to fix C++ build

[noreply at github.com]

Branch: refs/heads/master
Home:   https://github.com/parrot/parrot

Commit: 872e2ccf3fb7ceda368ddfa0731d49abd6204d4e
    https://github.com/parrot/parrot/commit/872e2ccf3fb7ceda368ddfa0731d49abd6204d4e
Author: Christoph Otto <christoph_github at mksig.org>
Date:   2011-03-03 (Thu, 03 Mar 2011)

Changed paths:
  M src/multidispatch.c

Log Message:
-----------
add cast to fix C++ build