move make_fcn_handle to tree_evaluator class * pt-eval.h, pt-eval.cc (tree_evaluator::make_fcn_handle): New function. Change all uses of global make_fcn_handle to use this member function instead. (get_operator_function_name): New function. * ov-fcn-handle.h, ov-fcn-handle.cc (make_fcn_handle): Deprecate. Now a wrapper for tree_evaluator::make_fcn_handle. (octave_fcn_handle::octave_fcn_handle (const std::string& name)): New constructor. * interpreter.h, interpreter.cc (interpreter::make_function_handle): New function.

--- a/libinterp/corefcn/interpreter.cc	Fri Apr 03 22:00:06 2020 -0400
+++ b/libinterp/corefcn/interpreter.cc	Wed Apr 15 23:14:06 2020 -0400
@@ -1577,6 +1577,11 @@
     return feval (f_arg, tmp_args, nargout);
   }
 
+  octave_value interpreter::make_function_handle (const std::string& name)
+  {
+    return m_evaluator.make_fcn_handle (name);
+  }
+
   void interpreter::install_variable (const std::string& name,
                                       const octave_value& value, bool global)
   {