Patch: another gcj assume-compiled fix

[Jeff Sturm]

On 23 Jan 2003, Tom Tromey wrote:
> Index: ChangeLog
> from  Tom Tromey  <tromey@redhat.com>
> 	* class.c (build_static_field_ref): Only a String or numeric field
> 	can fold to a constant.

This one's probably my fault.  Originally -fno-assume-compiled would ICE
on certain case statements, my patch however was too encompassing.

FWIW I agree with your fix; thanks for handling it.

Jeff