[parrot/parrot] bb88ae: Add stub for Signature.clone()

[GitHub]

  Branch: refs/heads/pcc_reorder_signatures
  Home:   https://github.com/parrot/parrot
  Commit: bb88aecc184cea5780940b16c8875e1ef1d14206
      https://github.com/parrot/parrot/commit/bb88aecc184cea5780940b16c8875e1ef1d14206
  Author: Vasily Chekalkin <bacek at bacek.com>
  Date:   2012-03-29 (Thu, 29 Mar 2012)

  Changed paths:
    M include/parrot/signature.h
  M src/call/signature.c

  Log Message:
  -----------
  Add stub for Signature.clone()