TypeError crash in ccpp_fortran_to_metadata.py instead of error message

[jimmielin]

Description

ccpp_fortran_to_metadata.py crashes with TypeError: sequence item 0: expected str instance, ParseSyntaxError found when parsing a module with a variable declaration that triggers a
ParseSyntaxError:

Traceback (most recent call last):
  File "...ccpp_fortran_to_metadata.py", line 248, in <module>
    _main_func()
  File "...ccpp_fortran_to_metadata.py", line 241, in _main_func
    _ = parse_fortran_files(fort_files, run_env,
  File "...ccpp_fortran_to_metadata.py", line 185, in parse_fortran_files
    ftables, _ = parse_fortran_file(filename, run_env)
  File "...scripts/fortran_tools/parse_fortran_file.py", line 1063, in parse_fortran_file
    statements, ptables, additional_routines = parse_module(pobj, statements, run_env)
  File "...scripts/fortran_tools/parse_fortran_file.py", line 1036, in parse_module
    raise CCPPError('\n'.join(errors))
TypeError: sequence item 0: expected str instance, ParseSyntaxError found

Steps to Reproduce

On latest develop

1. Create a Fortran file with a module-level DDT variable with integer dimensions that triggers the error

module fruit_basket
   implicit none
!> \section arg_table_fruit_basket  Argument Table
!! \htmlinclude arg_table_fruit_basket.html
   integer, parameter :: N_FRUITS = 10
   type :: banana_t
      real :: ripeness
   end type banana_t
   type(banana_t) :: bananas(0:N_FRUITS)
end module fruit_basket

2. Run ccpp_fortran_to_metadata.py
3. Script crashes with TypeError instead of reporting the parse error.

PR forthcoming. The expected fix will allow for the correct error

bananas: '0:N_FRUITS' is an invalid dimension name; integer dimension indices not supported, at ...module_with_ddt_var.F90:13