re PR c++/59295 (useless warning: 'Bar' is already a friend of 'Foo' [enabled by default])

2014-04-16  Paul Pluzhnikov  <ppluzhnikov@google.com>

	PR c++/59295
	* friend.c (add_friend, make_friend_class): Move repeated friend
	warning under Wredundant_decls.

From-SVN: r209444

gcc/cp/ChangeLog

+2014-04-16  Paul Pluzhnikov  <ppluzhnikov@google.com>
+
+	PR c++/59295
+	* friend.c (add_friend, make_friend_class): Move repeated friend
+	warning under Wredundant_decls.
+
 2014-04-15  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	* decl.c (duplicate_decls): Remove redundant TYPE_NAME use.

gcc/cp/friend.c

@@ -148,7 +148,8 @@ add_friend (tree type, tree decl, bool complain)
 	      if (decl == TREE_VALUE (friends))
 		{
 		  if (complain)
-		    warning (0, "%qD is already a friend of class %qT",
+		    warning (OPT_Wredundant_decls,
+			     "%qD is already a friend of class %qT",
 			     decl, type);
 		  return;
 		}
@@ -376,7 +377,8 @@ make_friend_class (tree type, tree friend_type, bool complain)
 	  if (friend_type == probe)
 	    {
 	      if (complain)
-		warning (0, "%qD is already a friend of %qT", probe, type);
+		warning (OPT_Wredundant_decls,
+			 "%qD is already a friend of %qT", probe, type);
 	      break;
 	    }
 	}
@@ -385,7 +387,8 @@ make_friend_class (tree type, tree friend_type, bool complain)
 	  if (same_type_p (probe, friend_type))
 	    {
 	      if (complain)
-		warning (0, "%qT is already a friend of %qT", probe, type);
+		warning (OPT_Wredundant_decls,
+			 "%qT is already a friend of %qT", probe, type);
 	      break;
 	    }
 	}