[gcc r13-3070] attribs: Add missing auto_diagnostic_group 3 times

[Jakub Jelinek <jakub@gcc.gnu.org>]

https://gcc.gnu.org/g:ade1e0d5896221500d1cbda38cd631cf80325aaa

commit r13-3070-gade1e0d5896221500d1cbda38cd631cf80325aaa
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Tue Oct 4 21:05:16 2022 +0200

    attribs: Add missing auto_diagnostic_group 3 times
    
    In these spots, the error/error_at has some inform afterwards which are
    explanation part of the same diagnostics, so should be tied with
    auto_diagnostic_group with it.
    
    2022-10-04  Jakub Jelinek  <jakub@redhat.com>
    
            * attribs.cc (handle_ignored_attributes_option, decl_attributes,
            common_function_versions): Use auto_diagnostic_group.

Diff:
---
 gcc/attribs.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gcc/attribs.cc b/gcc/attribs.cc
index b1f103222aa..1462c1192ae 100644
--- a/gcc/attribs.cc
+++ b/gcc/attribs.cc
@@ -251,6 +251,7 @@ handle_ignored_attributes_option (vec<char *> *v)
       /* We don't accept '::attr'.  */
       if (cln == nullptr || cln == opt)
 	{
+	  auto_diagnostic_group d;
 	  error ("wrong argument to ignored attributes");
 	  inform (input_location, "valid format is %<ns::attr%> or %<ns::%>");
 	  continue;
@@ -732,6 +733,7 @@ decl_attributes (tree *node, tree attributes, int flags,
 	      || (spec->max_length >= 0
 		  && nargs > spec->max_length))
 	    {
+	      auto_diagnostic_group d;
 	      error ("wrong number of arguments specified for %qE attribute",
 		     name);
 	      if (spec->max_length < 0)
@@ -1167,6 +1169,7 @@ common_function_versions (tree fn1, tree fn2)
 	      std::swap (fn1, fn2);
 	      attr1 = attr2;
 	    }
+	  auto_diagnostic_group d;
 	  error_at (DECL_SOURCE_LOCATION (fn2),
 		    "missing %<target%> attribute for multi-versioned %qD",
 		    fn2);