c-defun-name-and-limits returns nil always

[sebasmonia]

Find a more reliable way to find out the current method.

[sebasmonia]

Apparently this was broken only in Emacs 28 (dev branch), so I can assume it will work again by the time Emacs 28 releases.
Still worth it to look into, maybe, an lsp-mode setup?
The code would try to get the method name from lsp, then c-defun-name-and-limits, and finally thing-at-point.

[sebasmonia]

Wondering if tree sitter can also be incorporated into this mix.

TS -> LSP/Eglot -> c-defun-name-and-limits -> symbol-at-point