sumneko-lua-language-server: darwin support

[onsails]

Motivation for this change

Things done

• Tested using sandboxing (nix.useSandbox on NixOS, or option sandbox in nix.conf on non-NixOS linux)
• Built on platform(s)
  • NixOS
  • macOS
  • other Linux distributions
• Tested via one or more NixOS test(s) if existing and applicable for the change (look inside nixos/tests)
• Tested compilation of all pkgs that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review wip"
• Tested execution of all binary files (usually in ./result/bin/)
• Determined the impact on package closure size (by running nix path-info -S before and after)
• Ensured that relevant documentation is up to date
• Fits CONTRIBUTING.md.

[mjlbach]

My understanding is that this is not going to build until after the 10.12 SDK is bumped to a newer version:

error: builder for '/nix/store/8w6mvlk0sbq0pxvjd7gyb8b5lj31w3rd-sumneko-lua-language-server-1.20.2.drv' failed with exit code 1;
       last 10 log lines:
       >   const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
       >                            ^
       > 3rd/bee.lua/bee/fsevent/fsevent_osx.cpp:163:26: note: in instantiation of function template specialization 'fmt::v7::format<char [12], int &, char, 0>' requested here
       >                     fmt::format("remove `{}`", arg.m_id)
       >                          ^
       > 3rd/bee.lua/bee/nonstd/fmt/core.h:1426:41: note: candidate template ignored: invalid explicitly-specified argument for template parameter 'Context'
       > FMT_CONSTEXPR basic_format_arg<Context> make_arg(const T& value) {
       >                                         ^
       > 3 errors generated.
       > ninja: build stopped: subcommand failed.
       For full logs, run 'nix log /nix/store/8w6mvlk0sbq0pxvjd7gyb8b5lj31w3rd-sumneko-lua-language-server-1.20.2.drv'.

See: LuaLS/lua-language-server#141

[stale]

I marked this as stale due to inactivity. → More info

[malob]

Closing since Darwin support was added in another PR.