[ecj] Patch: FYI: another quick-stack-flushing patch

[Andrew Haley]

Tom Tromey writes:
 > I'm checking this in on the gcj-eclipse branch.
 > 
 > We should also flush the quick stack on a COMPONENT_REF, as one of
 > those may trap.
 > 
 > I'm not sure whether we need to strip off conversions here or
 > not... Andrew, do you know?

I suggest just calling flush_quick_stack() every time.  It's not worth
the sweat worrying about it.

Andrew.