[developers] `fragmented' scoping MRSs

[Ann Copestake]

yes, I've seen this when playing around with grammars.  (I would also expect 
to see non-frag MRSs that don't scope.) I believe the test for fragmentation 
is checking for explicit label/hole relationships between all the EPs (either 
label equality or qeq), though I haven't seen a spec, so I might be wrong 
about this.  The scoping code in the LKB doesn't require that qeqs are there - 
it just ensures they are obeyed if they are present.

Ann