Add Fortran scope/namespace to timer name to match PDT parsers

[zbeekman]

The PDT parsers will emit timer names that reflect the scope of the procedure declaration. For example you might have nested internal procedures within a module or a main program:

program main
  implicit none
  call greet("sam")
contains
  subroutine greet(person)
    character(len=*), intent(in) :: person
    character(len=:), allocatable :: message
    message = get_greeting_for(person)
    print*, trim(message)
  contains
    function get_greeting_for(person)
      character(*), intent(in) :: person
      character(:), allocatable :: get_greeting_for
      associate(msg => "Hello "//trim(person)//"!")
        allocate(get_greeting_for, source=msg)
      end associate
    end function get_greeting_for
  end subroutine greet
end program main

PDT seems to declare timers like main::greet and main::greet::get_greeting_for

[zbeekman]

well, recent GFortrans don't support nesting multiple contains statements, so this might not be correct code, but, you will still have internal procedures inside of modules and main programs...