- Use cursorInfo USR lookup instead of index (more accurate)
- Add document version tracking to reject stale resolve requests
- Make InlayHintResolveData conform to LSPAnyCodable
- Reference swiftlang/swift#86432 for mangled type workaround
- cursorInfoFromTypeUSR takes DocumentSnapshot for version safety
- Remove TypeDefinition.swift (defer to follow-up PR)
- Remove unnecessary comments
- Tests work without index
Implements resolveProvider for inlay hints to enable navigating to type
definitions. When an inlay hint showing a type is resolved, the server
looks up the type's definition location using cursorInfo and the index.
- store variable position in InlayHint.data for resolution
- add inlayHintResolve to LanguageService protocol
- implement resolve handler using cursorInfo and index lookup
- enable resolveProvider: true in capabilities
- add test for resolve functionality
Addresses #2318
