Fast path for (toJson l).compress that skips the intermediate Json object.
Used in place of (toJson l).compress in the language server.
Equations
- l.compressFast = Lean.Lsp.ResolvableCompletionList.compressItemsFast✝ ("{\"isIncomplete\":" ++ toString l.isIncomplete ++ ",\"items\":[") l.items 0 ++ "]}"