[PATCH] New dwarf2 reader, and a note

[Daniel Berlin <dan at cgsoftware dot com>]

I've updated it just a bit more, mainly cleanups.
Note that I won't be able to touch it, or the new typesystem stuff,  for at
least few months, i'm firmly in gcc land for a while, working on
optimizations and whatnot, and debug output.
However, i'll happily answer any questions about either, or do
anything i can besides coding gdb to help out.
Also, if anyone needs changes to gcc's debug output or whatever, or
are wondering what's going on, and
don't know who to ask, feel free to ask me, and if necessary, i'll
play "gdb's ambassador for debug formats to gcc". 

For instance, gcc's debug hooks just changed, to make them cleaner.
If you start seeing new breakage related to debug formats, please, let
me know, and i'll make sure the approriate people find out about it.

Anyway, the new dwarf2read has no regressions, and actually some XPASS's.

Jim, you should be able to rip out whatever you want, the routines no
longer depend on *anything* but the context that gets passed into
them.  You should easily be able to rip out the parent pointer related
stuff to do scoping properly, etc.

I'll be back to coding gdb stuff in a few months.
--Dan

newdwarf2read.c.gz

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