Cleaned up the demangling mess:

- Now more clearly distinguishing between C++-demangling, Z-demangling, and
  below-main renaming, particularly in 'get_sym_name'.
  
- --demangle=no no longer prevents Z-demangling, which makes more sense,
  although it's unlikely to affect anyone.

- Broke the circular dependency between m_demangle and m_debuginfo by moving
  below-main renaming into m_debuginfo.

- Renamed some get_fnname_* functions to make their effect clearer, and
  improved their comments.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@9138 a5019735-40e9-0310-863c-91ae7b9d1cf9
6 files changed