Bug: InternalError on ctest_memcheck call

[Kamilcuk]

The following innocent looking cmake file:

ctest_memcheck(a)

Yes, just one line, causes:

/work # cmake-lint ./cmake/k/dashboard_lib.cmake
ERROR parsed an empty subtree at Token(type=WORD, content='a', line=2, col=15):
  └─ StandardArgTree: 0:0

 pspec: (0, False, [], ['APPEND', 'QUIET'], True, None, None)
Traceback (most recent call last):
  File "/usr/lib/python3.9/site-packages/cmakelang/lint/__main__.py", line 185, in main
    return inner_main()
  File "/usr/lib/python3.9/site-packages/cmakelang/lint/__main__.py", line 168, in inner_main
    process_file(cfg, local_ctx, intext)
  File "/usr/lib/python3.9/site-packages/cmakelang/lint/__main__.py", line 45, in process_file
    parse_tree = parse.parse(tokens, ctx)
  File "/usr/lib/python3.9/site-packages/cmakelang/parse/__init__.py", line 68, in parse
    return BodyNode.consume(ctx, tokens)
  File "/usr/lib/python3.9/site-packages/cmakelang/parse/body_nodes.py", line 67, in consume
    subtree = StatementNode.consume(ctx, tokens)
  File "/usr/lib/python3.9/site-packages/cmakelang/parse/statement_node.py", line 89, in consume
    node.argtree = subtree = parse_fun(ctx, tokens, breakstack)
  File "/usr/lib/python3.9/site-packages/cmakelang/parse/funs/random.py", line 142, in parse_ctest_memcheck
    return StandardArgTree.parse(ctx, tokens, 0, kwargs, flags, breakstack)
  File "/usr/lib/python3.9/site-packages/cmakelang/parse/argument_nodes.py", line 224, in parse
    return cls.parse2(
  File "/usr/lib/python3.9/site-packages/cmakelang/parse/argument_nodes.py", line 192, in parse2
    raise InternalError(
cmakelang.common.InternalError

To reproduce:

docker run --rm alpine sh -xc ' apk add cmake py-pip ; echo "ctest_memcheck(a)" > ./file.cmake ; pip install cmake-format ; cmake-lint ./file.cmake '

Source is here: https://github.com/cheshirekow/cmake_format/blob/904c42da298f7fda932d9ac774517c20e2667fb8/cmakelang/parse/funs/random.py#L142 - should it be parse(..., 0, ...) ? What does the 0 mean? It's the only difference I see between the other parse calls.

The real code actually is valid and passes needed arguments like:

macro(my_wrapper_ctest_memcheck)
   ctest_memcheck(${ARGV})
endmacro()

However, because of the internal error, I can't disable the check.