[Bug c++/66919] [5 Regression] C++14 ICE during error reporting

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66919

--- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Mon Aug 17 21:34:50 2015
New Revision: 226955

URL: https://gcc.gnu.org/viewcvs?rev=226955&root=gcc&view=rev
Log:
        PR c++/66919
        * pt.c (tsubst_copy): Pass complain to mark_used, check return value.

Added:
    branches/gcc-5-branch/gcc/testsuite/g++.dg/cpp1y/auto-fn27.C
Modified:
    branches/gcc-5-branch/gcc/cp/ChangeLog
    branches/gcc-5-branch/gcc/cp/pt.c