098284aec8
10522: fix: make signature info response conform to spec r=lnicola a=muscar This addreses https://github.com/rust-analyzer/rust-analyzer/issues/10464. This patch picks up `lsp-types` 0.90.1, which serialises the `SignatureInformation` and `ParameterInformation` with the right casing. It also adds `activeSignature` field as part of the top-level signature response. It keeps `activeParameter` at the top-level for backwards compatibility. Co-authored-by: Alex Muscar <alex@muscar.eu>