Merge #4602 #4603

4602: Add boolean literal semantic token type to package.json r=matklad a=lnicola

Closes #4583.

CC @GrayJack

4603: Add self keyword semantic token type r=matklad a=lnicola

Not sure if this is warranted a new token type or just a modifier.

---

CC #4583, @GrayJack

Co-authored-by: Laurențiu Nicola <lnicola@dend.ro>

diff --cc crates/rust-analyzer/src/to_proto.rs
Simple merge

diff --cc editors/code/package.json
Simple merge