nitvm: The position of a Variable in the environment is writable

Signed-off-by: Julien Pagès <julien.projet@gmail.com>

diff --git a/src/vm/variables_numbering.nit b/src/vm/variables_numbering.nit
index 4de0eb4..0616c2b 100644 (file)
--- a/src/vm/variables_numbering.nit
+++ b/src/vm/variables_numbering.nit
@@ -77,7 +77,7 @@ end
 
 redef class Variable
        # The position in the environment
-       var position: Int
+       var position: Int is writable
 end
 
 # Implementation of a Frame with numbered variables