merges r24659 from trunk into ruby_1_9_1.

--
* vm.c (collect_local_variables_in_env): skips internal variables.
  [ruby-core:25125]

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_9_1@25545 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/vm.c b/vm.c
index 3efab55f8..f35715699 100644
--- a/vm.c
+++ b/vm.c
@@ -363,7 +363,7 @@ collect_local_variables_in_env(rb_env_t * const env, const VALUE ary)
     int i;
     for (i = 0; i < env->block.iseq->local_table_size; i++) {
 	ID lid = env->block.iseq->local_table[i];
-	if (lid) {
+	if (rb_is_local_id(lid)) {
 	    rb_ary_push(ary, ID2SYM(lid));
 	}
     }