INTRINSIC statement functions modelled as variables, shouldn't be just strings?

[lsafina]

INTRINSIC statement (https://docs.oracle.com/cd/E19957-01/805-4939/6j4m0vna7/index.html) has a form

INTRINSIC fun [, fun] ...

where fun is a name of a function used in the same program unit. Currently fun is modelled as a variable (as FASTFortranIntrinsicStatement implements FASTFortranTVariableGroup). The question is if it is correct or names of functions should be just plain strings.

[NicolasAnquetil]

it is not a variable for sure.

We could have a FASTFortranIntrinsicStatement or something along these lines
And this would have a name which is a plain Pharo String (it would be a named entity).