PATCH: Revert change of 2001-10-23

[Andrew Cagney]

> 2002-09-18  Jim Blandy  <jimb@redhat.com>
> 
> 	* dbxread.c, mdebugread.c: Revert my change of 2001-10-23.  Moving
> 	texthigh and textlow to reader-specific structs caused
> 	objfile_relocate to miss them.  This is fixable, but the work that
> 	the change was supposed to prepare GDB for never got done anyway.
> 

Looks like another thing for the 5.3 branch!

Andrew