X-Debbugs-CC: dev@rjt.dev

tree-sitter-go changed method_spec to method_elem in
https://github.com/tree-sitter/tree-sitter-go/commit/b82ab803d887002a0af11f6ce63d72884580bf33

so now go-ts-mode breaks on the lastest go grammar. This patch should restore peace to go-ts-mode.

Yuan