Tracking issue for migrating away from `#[query_group]`

[ada4a]

@Veykril said:

One thing we still need to "clean up" are the left over tasks from the salsa migration. That is we currently have this query_group macro that mimics the old salsa API which we used to make the migration easier. We still need to get rid of all the invocations of that macro and replace them by the newer salsa APIs

Steps/History

• remove features from the #[query_group] macro:
  • internal: Remove interning from query_group #22328
  • internal: remove input queries from #[query_group] #22639
  • internal: remove #[salsa::lru] support in #[query_group] #22700
  • internal: remove #[salsa::invoke_interned] support from #[query_group] #22702
  • internal: remove cycle_{fn,initial} support from #[query_group] #22746
• remove the remaining query groups:
  • LineIndexDatabase (Remove LineIndexDatabase #22063)
  • RootQueryDb (Remove RootQueryDb #21944)
  • ExpandDatabase
    • internal: move ExpandDatabase::syntax_context out of the query group #22658
    • internal: inline ExpandDatabase::expand_proc_macro into its only caller #22689
    • internal: remove ExpandDatabase::proc_macro_span in favor of the underlying fn #22699
    • internal: remove some more ExpandDatabase queries #22719
    • internal: migrate ExpandDatabase::*span_map queries #22729
    • (internal: make expand_speculative a method on MacroCallId #22733)
    • internal: remove ExpandDatabase #22739
  • DefDatabase (internal: remove DefDatabase #22745)
  • HirDatabase
• more? (TBD)