use correct svar even if env is escaped

This patch is follo-up of 0a82bfe.
Without this patch, if env is escaped (Proc'ed), strange svar
can be touched.

This patch tracks escaped env and use it.

1 files changed, 1 insertions, 1 deletions

diff --git a/internal/imemo.h b/internal/imemo.h
index 8d506dda7d..57a705ce77 100644
--- a/internal/imemo.h
+++ b/internal/imemo.h
@@ -82,7 +82,7 @@ struct vm_ifunc_argc {
 /*! IFUNC (Internal FUNCtion) */
 struct vm_ifunc {
     VALUE flags;
-    struct rb_control_frame_struct *owner_cfp;
+    VALUE *svar_lep;
     rb_block_call_func_t func;
     const void *data;
     struct vm_ifunc_argc argc;