LSP Request Changes

[enigmurl]

We should prioritize LSP requests to the currently opened file, especially on startup. Right now, there is sometimes a noticeable lag. Also, sometimes we send requests to a closed file and there's an error. We should try to gracefully handle these errors.

[onriv]

@enigmurl also discussed in redhat-developer/lsp4ij#582

[onriv]

We should prioritize LSP requests to the currently opened file, especially on startup. Right now, there is sometimes a noticeable lag.

This is possible in 0.1.7 with LSP4IJ 0.8.1, please give it a try.

Also note https://leanprover.zulipchat.com/#narrow/stream/270676-lean4/topic/.E2.9C.94.20Compiling.20too.20slow
for Intellij auto saving files

[enigmurl]

Seems fixed. Thanks for the hard work!