* cpphash.h (enum node_type: Take out T_MCONST.
(union hashval): Move into struct hashnode.
(struct hashnode): Pack tighter. Remove file, line, col
members.
* cpphash.c: Constify most of the macro-definition structures.
(struct definition): Replace by struct object_defn
and struct funct_defn. Put file, line, column information
here. All users updated to match.
(_cpp_create_definition, _cpp_macroexpand): Remove special
case for #define WORD OTHERWORD.
* cpplib.c (do_undef): Remove T_MCONST case.
From-SVN: r33538
