Why was memberHierarchy removed?

[dscole]

The memberHierarchy message was removed in 04609a5, but this is still being used by the emacs cquery package.

[jacobdufault]

I didn't think anyone was using it and since it is not in LSP spec, I opted to remove it. Happy to re-add if you're actively using it though.

[dscole]

I just started using emacs with cquery, but yeah I think it could be useful (if it could be optimized a bit to be faster). Currently emacs-cquery's member-hierarchy feature is broken because it was removed from cquery: https://github.com/cquery-project/emacs-cquery/blob/master/cquery-member-hierarchy.el

[andrelkin]

I attempted to revert 04609a5 to manually merge couple
of obvious conflicts and build. Still no cigar.. The timeout remains (I did cquery-freshen-index just in case as well).