Live Range Splitting goodbye?

[Jim Blandy <jimb@redhat.com>]

Would anyone mind if I deleted the support for live range splitting?
That would remove the following fields from struct symbol, get rid of
a weird call to read_pc in symtab.c (!!), and a bunch of other stuff.

I believe the GCC code which would emit the sorts of STABS that turn
into these structures has never been contributed to the public sources
anyway.

struct symbol
  {
    ...

    /* Link to a list of aliases for this symbol.
       Only a "primary/main symbol may have aliases.  */
    struct alias_list *aliases;

    /* List of ranges where this symbol is active.  This is only
       used by alias symbols at the current time.  */
    struct range_list *ranges;
  };