add parse support for @package to ObjC*

gcc/c-family:
	
	* c-common.c (c_common_reswords): Add package, RID_AT_PACKAGE.
	* c-common.h (enum rid): Add RID_AT_PACKAGE.
	(objc_ivar_visibility_kind): New enum.
	(objc_set_visibility): Adjust prototype to use visibility enum.
	* stub-objc.c (objc_set_visibility): Adjust stub to use 
	visibility enum.

gcc/objc:

	* objc-act.c: Rename 'objc_public_flag' to  objc_ivar_visibility and
	make its type 'objc_ivar_visibility_kind'.  
	(objc_start_class_interface): Update to use visibility enum.
	(objc_start_class_implementation): Likewise.
	(objc_set_visibility): Update to use visibility enum, warn that 
	@package is handle as per @public.
	(add_instance_variable): Handle OBJC_IVAR_VIS_PACKAGE.
	* objc-act.h: Rename 'objc_public_flag' to  objc_ivar_visibility and
	make its type 'objc_ivar_visibility_kind'.

gcc/cp:

	* parser.c (cp_parser_objc_visibility_spec): Update to use visibility 
	enum, and handle @package.

gcc:

	* c-parser.c (c_parser_objc_class_instance_variables): Update to use 
	visibility enum, and handle @package.

gcc/testsuite:

	* objc.dg/fsf-package-0.m: New.
	* obj-c++.dg/fsf-package-0.m: New.

From-SVN: r165585

1 files changed, 9 insertions, 3 deletions

diff --git a/gcc/c-parser.c b/gcc/c-parser.c
index 36ed951..e4230b9 100644
--- a/gcc/c-parser.c
+++ b/gcc/c-parser.c
@@ -6703,19 +6703,25 @@ c_parser_objc_class_instance_variables (c_parser *parser)
       if (c_parser_next_token_is_keyword (parser, RID_AT_PRIVATE))
 	{
 	  c_parser_consume_token (parser);
-	  objc_set_visibility (2);
+	  objc_set_visibility (OBJC_IVAR_VIS_PRIVATE);
 	  continue;
 	}
       else if (c_parser_next_token_is_keyword (parser, RID_AT_PROTECTED))
 	{
 	  c_parser_consume_token (parser);
-	  objc_set_visibility (0);
+	  objc_set_visibility (OBJC_IVAR_VIS_PROTECTED);
 	  continue;
 	}
       else if (c_parser_next_token_is_keyword (parser, RID_AT_PUBLIC))
 	{
 	  c_parser_consume_token (parser);
-	  objc_set_visibility (1);
+	  objc_set_visibility (OBJC_IVAR_VIS_PUBLIC);
+	  continue;
+	}
+      else if (c_parser_next_token_is_keyword (parser, RID_AT_PACKAGE))
+	{
+	  c_parser_consume_token (parser);
+	  objc_set_visibility (OBJC_IVAR_VIS_PACKAGE);
 	  continue;
 	}
       else if (c_parser_next_token_is (parser, CPP_PRAGMA))