* mdebugread.c (psymtab_to_symtab_1): Handle new live range stabs

    * mdebugread.c (psymtab_to_symtab_1): Handle new live range stabs
        entries.

        * dbxread.c: More comment cleanups.
        * stabsread.c: Fix various violations of the GNU coding and
        formatting standards.  Update/add comments to make code clearer.
        (resolve_reference): Delete unused function.
        (ref_search_val): Remove function.  It didn't belong in stabsread.c
        (resolve_live_range): No longer returns a value.  Do not add it
        to the live range list until the entire range stab has been parsed.
        (get_substring): Remove duplicate declaration.
        (resolve_symbol_reference): Now static.  Remove unnecessary code
        to deal with cleanups.
         (ref_add): Use xrealloc instea of realloc.
        (process_reference): Reorganize slightly to make clearer.
        * stabsread.h (resolve_symbol_reference): Remove declaration.
        (resolve_reference): Likewise.
        * symtab.c (find_active_alias): New function.
        (lookup_block_symbol): Use find_active_alias.
        * symtab.h (struct range_list): Fix dangling struct live_range
        reference.
        (ref_search_val): Remove decl.

        * symtab.h (struct range_list): Renamed from struct live_range.
        (struct symbol): Remove struct live_range_info substruct.
        Bring the alias list and range list fields up to the toplevel
        as "aliases" and "ranges".
        (SYMBOL_ALIASES, SYMBOL_RANGES): Corresponding changes.
        (SYMBOL_RANGE_START, SYMBOL_RANGE_END, SYMBOL_RANGE_NEXT): Delete.
        * stabsread.c: Corresponding changes.
Bring first round of cleanups over from r5900 branch.