[Bug c/90677] [9 Regression] gcc-9.1.0 fails to build __gcc_diag__ souce: error: 'cgraph_node' is not defined as a type

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90677

--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Jan  2 17:29:59 2020
New Revision: 279840

URL: https://gcc.gnu.org/viewcvs?rev=279840&root=gcc&view=rev
Log:
        PR c/90677
        * cp-objcp-common.c (identifier_global_tag): Return NULL_TREE if name
        has not been found, rather than error_mark_node.

        * c-c++-common/pr90677-2.c: New test.

Added:
    trunk/gcc/testsuite/c-c++-common/pr90677-2.c
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/cp-objcp-common.c
    trunk/gcc/testsuite/ChangeLog