[PATCH 4/4] more transparent dealing with tokens/position

["Jan Pokorný" <pokorny_jan@seznam.cz>]

Unify usage of `token_type' and `eof_token' also with gdbhelpers.
When 3/4 is applied, no need to do explicit cast to `enum token_type'.

Tested to work as it used to*).

*) testing commands sequence:
$ gdb --args ./sparse compat/mmap-blob.c
(gdb) source gdbhelpers
(gdb) b lib.c:882
(gdb) r
(gdb) gdb_show_tokens token

Signed-off-by: Jan Pokorny <pokorny_jan@seznam.cz>
---
 gdbhelpers |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/gdbhelpers b/gdbhelpers
index 8634786..9a3630d 100644
--- a/gdbhelpers
+++ b/gdbhelpers
@@ -259,7 +259,7 @@ end
 
 define gdb_show_token
 	printf "%p: '%s', type = ", $arg0, show_token($arg0)
-	output (enum token_type) ($arg0)->pos.type
+	output token_type($arg0)
 	printf "\n"
 
 	if (! $showing_token)
@@ -268,18 +268,18 @@ define gdb_show_token
 
 		set $token = $arg0
 
-		if ($token->pos.type == TOKEN_IDENT)
+		if (token_type($token) == TOKEN_IDENT)
 			gdb_tabs
 			printf "ident = "
 			gdb_show_ident $token.ident
 		end
 
-		if ($token->pos.type == TOKEN_MACRO_ARGUMENT)
+		if (token_type($token) == TOKEN_MACRO_ARGUMENT)
 			gdb_tabs
 			printf "argnum = %d\n", $token->argnum
 		end
 
-		if ($token->pos.type == TOKEN_SPECIAL)
+		if (token_type($token) == TOKEN_SPECIAL)
 			gdb_tabs
 			printf "special = \"%s\"\n", show_special($token.special)
 		end
@@ -294,7 +294,7 @@ define gdb_show_tokens
 	set $t = $arg0
 	printf "{\n"
 	set $ntabs++
-	while ($t != &eof_token_entry)
+	while (!eof_token($t))
 		gdb_tabs
 		printf "token = "
 		gdb_show_token($t)
-- 
1.7.1