Support LuaJIT FFI in emmylua-ls

[ligurio]

There is a project for supporting Python FFI in LSP ¹. It is implemented as a language server that provides getDefinition() function for FFI calls and returns the location of the corresponding C++ API. It complements the IDE tools that support navigation within the same language.

It would be nice to support the same feature for emmylua-check.

Footnotes

1. https://github.com/tqchen/ffi-navigator ↩

[CppCXY]

What is the difference between this and defining types through emmylua doc?