Fails to build on Windows

[archseer]

Hi, we've imported the grammar into helix, now that #27 was addressed! A bug report was just opened (helix-editor/helix#117) regarding building the grammar on Windows, it seems that there's some errors with scanner.cc:

  languages\tree-sitter-haskell\src\scanner.cc(1555): error C3861: 'to_string': identifier not found
  languages\tree-sitter-haskell\src\scanner.cc(1556): error C3861: 'to_string': identifier not found
  languages\tree-sitter-haskell\src\scanner.cc(1557): error C3536: 'col': cannot be used before it is initialized
  languages\tree-sitter-haskell\src\scanner.cc(1557): error C2676: binary '+': 'std::basic_string<char,std::char_traits<char>,std::allocator<char>>' does not define this operator or a conversion to a type acceptable to the predefined operator
  languages\tree-sitter-haskell\src\scanner.cc(1557): error C2672: 'operator __surrogate_func': no matching overloaded function found
  exit code: 2

[archseer]

I think this is possibly because we build the grammars with default settings that might not be C++14. I'll update our build setup.

[archseer]

Closing as duplicate of #34