anchor.diff:              for n, v in inam:
                   self.locals.append(v)
                   self.rtl_expand(self.astFactory.dupTree(ib))
  -                rtl = self.returnAST
  +                rtl = self.getAST()
                   self.locals.pop()
                   
                   if n in self.instructions:
  
positive.code:             elif s in self.constants:
                  ## = self.astFactory.dupTree(self.constants[s])
              else:
                  ## = self.astFactory.dup(#name)
          }
      |! #(TABLE etname:NAME etindex:rtl_expand)
          {
  
negative.code:             except:
                  raise SemanticException(#etname, "indice out of bounds")
             
              ## = self.astFactory.dupTree(expr)
          }
      |! #(LOOKUP_OP lexpr:rtl_expand otname:NAME otindex:rtl_expand rexpr:rtl_expand)
          {
  