Fix failing error reporting for solitary  (non-dispatched) guarded function
Fix failing error reporting for solitary  (non-dispatched) guarded function

kamilzubair/ChaiScript,bradparks/ChaiScript__cplusplus_scripting_language,kamilzubair/ChaiScript,kamilzubair/ChaiScript,bradparks/ChaiScript__cplusplus_scripting_language,bradparks/ChaiScript__cplusplus_scripting_language