vm: unwind-native-frames is special

Fixes #457

diff --git a/vm/quotations.cpp b/vm/quotations.cpp
index 43f90df2801af7c2ed0f84705d9dc2b0f532a2dc..190672945021fec88d58094b7ca6061221d42b73 100755 (executable)
--- a/vm/quotations.cpp
+++ b/vm/quotations.cpp
@@ -89,7 +89,8 @@ bool quotation_jit::special_subprimitive_p(cell obj)
        return obj == parent->special_objects[SIGNAL_HANDLER_WORD]
                || obj == parent->special_objects[LEAF_SIGNAL_HANDLER_WORD]
                || obj == parent->special_objects[FFI_SIGNAL_HANDLER_WORD]
-               || obj == parent->special_objects[FFI_LEAF_SIGNAL_HANDLER_WORD];
+               || obj == parent->special_objects[FFI_LEAF_SIGNAL_HANDLER_WORD]
+               || obj == parent->special_objects[UNWIND_NATIVE_FRAMES_WORD];
 }
 
 bool quotation_jit::word_stack_frame_p(cell obj)