(libiberty_demanglers): new table for demangle styles
(cplus_demangle_set_style): New function for setting style
(cplus_demangle_name_to_style): New function to translate name
* include/demangle.h
(libiberty_demanglers): new table for different styles
(cplus_demangle_set_style): New function for setting style
(cplus_demangle_name_to_style): New function to translate name
Co-Authored-By: Jason Merrill <jason@casey.cygnus.com>
From-SVN: r33525