Problem:
If a client doesn't have a config then an error may be thrown.
Probably caused by: 2f78ff816b
Lua callback: …/lsp.lua:442: attempt to index local 'config' (a nil value)
stack traceback:
…/lsp.lua:442: in function 'can_start'
…/lsp.lua:479: in function 'lsp_enable_callback'
…/lsp.lua:566: in function <…/lsp.lua:565>
Solution:
Not all clients necessarily have configs.
- Handle `config=nil` in `can_start`.
- If user "enables" an invalid name that happens to match a *client*
name, don't auto-detach the client.
(cherry picked from commit bf4710d8c3)
2668a46902