Fix memory leak; ref
The fix was proposed by
MODIFY
mrbgems/mruby-compiler/core/codegen.c
mrbgems/mruby-compiler/core/codegen.c
@@ -93,6 +93,7 @@ codegen_error(codegen_scope *s, const char *message)
if (!s) return;
while (s->prev) {
codegen_scope *tmp = s->prev;
+ mrb_free(s->mrb, s->iseq);
mrb_pool_close(s->mpool);
s = tmp;
}

Fix memory leak; ref #3378

The fix was proposed by @titanous