New Issue: Must the contents of a message be received?

[Danny van der Rijn <dannyv@tibco.com>]

If a receive/onMessage, etc. is declared against a portType that has a 
non-empty message, is it legal to not receive the messsage?  It seems 
that it should be illegal, given that 112 already requires all parts of 
a message to be mapped.  Discussion this afternoon doesn't leave me 
comfortable that we know the answer.

To be (more) clear:

WSDL
- portType
  - operation
   - in
     - msg
      - part1
      - part2

with a <receive> pointing to that port type.  This receive declares no 
variable attribute to receive the variable into.  Is this legal?