PARALLEL handling in update_flow_info

[Jeffrey A Law]

  In message <199708282329.AAA21381@phal.cygnus.co.uk>you write:
  > Sat Aug 16 20:57:20 1997  J"orn Rennecke <amylaar@cygnus.co.uk>
  > 
  > 	* sched.c (update_flow_info) When looking if to set found_split_dest
  > 	or found_orig_dest, look at all parts of a PARALLEL.
Thanks.  I've installed a slightly modified version into egcs.

Basically I couldn't convince myself that "insn" would always be an 
INSN, so it verifies that the class is correct before try to 
do anything with it.

jeff