Constructor names in the symbol table

[Jim Blandy <jimb at redhat dot com>]

Hey you C++ guys (and anyone else who's interested):

I've noticed that constructors get entered into the full symbol table
under their unprefixed name.  That is, the following code:

    struct S
    {
      int x;
      S(int);
    };


    S::S (int _x)
    {
      x = _x * 2;
    }


    int
    main ()
    {
      S s(3);
    }

as compiled by GCC 3.4 produces a LOC_TYPEDEF entry for S, and then
two LOC_BLOCK symbols for the in-charge and not-in-charge
constructors, whose names are S.

When I do something like set a breakpoint on S::S(int), I don't get a
match from the full symbol table; instead, I get a match on the
demangled names in the minimal symbol table.

Is this the way it's supposed to work?  I would have expected
something in dwarf2read to have consulted processing_current_prefix
and produced a qualified name for the full symbol.