parse.y: simplify ripper_id2sym

* parse.y (ripper_id2sym): remove unnecessary comparison as
  rb_ispunct has stricter condition, and cast explicitly to
  suppress warnings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51905 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/parse.y b/parse.y
index dbcb6544ae..84b414d21a 100644
--- a/parse.y
+++ b/parse.y
@@ -612,7 +612,7 @@ static void ripper_error_gen(struct parser_params *parser);
 #define ripper_intern(s) ID2SYM(rb_intern(s))
 static VALUE ripper_id2sym(ID);
 #ifdef __GNUC__
-#define ripper_id2sym(id) ((id) < 256 && rb_ispunct(id) ? \
+#define ripper_id2sym(id) (rb_ispunct((int)(id)) ? \
 			   ID2SYM(id) : ripper_id2sym(id))
 #endif