Unnamed repository; edit this file 'description' to name the repository.
Auto merge of #123099 - oli-obk:span_tcx, r=petrochenkov
Replace some `CrateStore` trait methods with hooks.
Just like with the `CrateStore` trait, this avoids the cyclic definition issues with `CStore` being
defined after TyCtxt, but needing to be used in TyCtxt.
