[rfa] Use SYMBOL_SET_NAMES in hpread

[Michael Elizabeth Chastain]

> you should test Daniel's other change to hpread as well.

Err, did I skip over something?  I thought this change was the
only change after Daniel broke up his composite patch.

Michael C

 > 2004-02-16  Daniel Jacobowitz  <drow@mvista.com>
 > 
 > 	* hpread.c (hpread_process_one_debug_symbol): Use SYMBOL_SET_NAMES
 > 	and rely on the demangler.