[PATCH 2/4] more transparent dealing with tokens/position

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

Unify usage of `eof_token'.

Version with respective assertions added will be provided,
mainly for convenient testing.  I used it to proceeded sparse itself
and linux-2.6.35.12 sources with no assertion violation encountered.

Signed-off-by: Jan Pokorny <pokorny_jan@seznam.cz>
---
 pre-process.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/pre-process.c b/pre-process.c
index 603cc00..c0fc89d 100644
--- a/pre-process.c
+++ b/pre-process.c
@@ -794,7 +794,7 @@ out:
 
 static int free_preprocessor_line(struct token *token)
 {
-	while (token_type(token) != TOKEN_EOF) {
+	while (!eof_token(token)) {
 		struct token *free = token;
 		token = token->next;
 		__free_token(free);
-- 
1.7.1