[Bug c++/41373] attribute error and warning dont show the instantiation stack

["msebor at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41373

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |diagnostic
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-02-07
                 CC|                            |msebor at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
Confirmed with recent trunk of GCC 7.  The instantiation context should be
present in all diagnostics.

$ cat t.C && gcc -S -Wall t.C
void f (int) __attribute__ ((error ("error")));
void f (double) __attribute__ ((warning ("warning")));
void f (void*) __attribute__ ((deprecated));

template <class T>
void g ()
{
  f (T ());
}

int main ()
{
  g<int>();
  g<double>();
  g<void*>();
}
t.C: In instantiation of ‘void g() [with T = void*]’:
t.C:15:12:   required from here
t.C:8:5: warning: ‘void f(void*)’ is deprecated [-Wdeprecated-declarations]
   f (T ());
   ~~^~~~~~
t.C:3:6: note: declared here
 void f (void*) __attribute__ ((deprecated));
      ^
t.C: In function ‘void g() [with T = int]’:
t.C:8:5: error: call to ‘f’ declared with attribute error: error
   f (T ());
   ~~^~~~~~
t.C: In function ‘void g() [with T = double]’:
t.C:8:5: warning: call to ‘f’ declared with attribute warning: warning
   f (T ());
   ~~^~~~~~