PATCH to extend tree stringification operators namespace

[Mark Mitchell]

>>>>> "gdr" == gdr  <gdr@codesourcery.com> writes:

    gdr> But I guess that as soon as the new machinery is fully
    gdr> fonctionnal we'll move things in the right place.

Wherever that is.  I think error.c is fine for now.  It's going to be
a long time before cc1plus is cleanly decomposed into a "stand-alone"
C++ front-end together with a tree->rtl translator.

I don't think there should be more than 32 formatting flags.  A
bitmask might be easier to manipulate than a `struct' as you make
recursive calls.

--
Mark Mitchell                   mark@codesourcery.com
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