Can't test rb_iter_break with extensions
If you test rb_iter_break() with some extension library like trunk's ext/-test-/iter/break.c, it will cause SEGV on 1.9.3.
It won't happen on 2.0 because r34369 is accidentally fix it with below patch.
I noticed this because RubySpec added a test for rb_spec_iter (4db31b04954118e66ac1d6353ebf4106cb2b419b) and hit this.
% svn di
--- vm.c (revision 39346)
+++ vm.c (working copy)
@@ -1370,6 +1370,7 @@
*th->cfp->sp++ = (GET_THROWOBJ_VAL(err));
+ th->state = 0;
th->errinfo = Qnil;
#1 Updated by Usaku NAKAMURA about 3 years ago
- Status changed from Open to Closed
- % Done changed from 0 to 100