CamlinternalMenhirLib.Convert.Simplified

`sig
val traditional2revised :
('token, 'semantic_value) CamlinternalMenhirLib.Convert.traditional ->
('token * Stdlib.Lexing.position * Stdlib.Lexing.position,
'semantic_value)
CamlinternalMenhirLib.Convert.revised
val revised2traditional :
('token * Stdlib.Lexing.position * Stdlib.Lexing.position,
'semantic_value)
CamlinternalMenhirLib.Convert.revised ->
('token, 'semantic_value) CamlinternalMenhirLib.Convert.traditional
end`