Nicholas Nethercote 99ac405b96 Move MetadataLoader{,Dyn} to rustc_metadata.
They're not used in `rustc_session`, and `rustc_metadata` is a more
obvious location.

`MetadataLoader` was originally put into `rustc_session` in #41565 to
avoid a dependency on LLVM, but things have changed a lot since then and
that's no longer relevant, e.g. `rustc_codegen_llvm` depends on
`rustc_metadata`.
2023-11-30 17:05:54 +11:00
..