text: ! Issue # 96: https://github.com/OpenFortranProject/open-fortran-parser/issues/96
  !
  ! prefix-spec was not updated for F2008 syntax. For example
  !
  !
  impure subroutine impure_proc
  end subroutine
  
  ELEMENTAL subroutine elemental_proc
  end subroutine
  
  MODULE subroutine module_proc
  end subroutine
  
  PURE subroutine pure_proc
  end subroutine
  
  RECURSIVE subroutine recursive_proc
  end subroutine
  