[Bug c/83056] GCC suggests the use of previously reported undeclared identifiers when reporting new undeclared identifiers

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83056

--- Comment #2 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Candidate patch:
  https://gcc.gnu.org/ml/gcc-patches/2017-11/msg01907.html