Erroneous diagnostic error with "recursive" argument in arg list

[gnikit]

Describe the bug
False positive diagnostic error

To Reproduce
fortls --debug_filepath literals.f90 --debug_rootpath . --debug_diagnostics

program test_literals
    implicit none
    contains
    subroutine foo(recursive, ierr)
        integer, intent(in) :: recursive
        integer, intent(out) :: ierr
        print*, recursive
    end subroutine foo
end program test_literals

Expected behavior
No diagnostic error

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Setup information (please complete the following information):

• OS: Linux
• Python Version 3.8
• fortls Version 2.10.0
• Code editor used: VS Code