------- Comment #7 from tromey at gcc dot gnu dot org 2009-08-26 14:28 ------- Typedefs are found using lookup_name. There is not really a separate mapping; instead the trees are held directly in the identifier node. These are reset as typedefs (or whatever) go out of scope, though.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41172
