Capture in popup any spawned language server interactivity

[bgmonroe]

I'm not sure if this functionality already exists but yesterday, Hashicorp updated terraform-ls to now interactively "Ask for init if current folder is empty root module" (hashicorp/terraform-ls#257). So unless terraform init has already been run, this causes VIM to "seemingly" hang on startup, as no keys respond except for the the 't' (to perform the init) or or to not.

You can see the dialog by setting COC_NO_PLUGINS=1 before running vim filename.tf.

It would be nice (for clarity) to be able to capture and display that interaction for an interactive key-press in a popup.

[chemzqm]

It's already supported with latest coc.nvim.