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`.

2 files changed, 2 insertions, 2 deletions

diff --git a/compiler/rustc_codegen_ssa/src/back/metadata.rs b/compiler/rustc_codegen_ssa/src/back/metadata.rs
index d716774690a..3e26e3653ea 100644
--- a/compiler/rustc_codegen_ssa/src/back/metadata.rs
+++ b/compiler/rustc_codegen_ssa/src/back/metadata.rs
@@ -12,9 +12,9 @@ use object::{
 
 use rustc_data_structures::memmap::Mmap;
 use rustc_data_structures::owned_slice::{try_slice_owned, OwnedSlice};
+use rustc_metadata::creader::MetadataLoader;
 use rustc_metadata::fs::METADATA_FILENAME;
 use rustc_metadata::EncodedMetadata;
-use rustc_session::cstore::MetadataLoader;
 use rustc_session::Session;
 use rustc_span::sym;
 use rustc_target::abi::Endian;
diff --git a/compiler/rustc_codegen_ssa/src/traits/backend.rs b/compiler/rustc_codegen_ssa/src/traits/backend.rs
index 35744d9a167..8e9907ed8bb 100644
--- a/compiler/rustc_codegen_ssa/src/traits/backend.rs
+++ b/compiler/rustc_codegen_ssa/src/traits/backend.rs
@@ -9,6 +9,7 @@ use rustc_ast::expand::allocator::AllocatorKind;
 use rustc_data_structures::fx::FxIndexMap;
 use rustc_data_structures::sync::{DynSend, DynSync};
 use rustc_errors::ErrorGuaranteed;
+use rustc_metadata::creader::MetadataLoaderDyn;
 use rustc_metadata::EncodedMetadata;
 use rustc_middle::dep_graph::{WorkProduct, WorkProductId};
 use rustc_middle::ty::layout::{FnAbiOf, HasTyCtxt, LayoutOf, TyAndLayout};
@@ -16,7 +17,6 @@ use rustc_middle::ty::{Ty, TyCtxt};
 use rustc_middle::util::Providers;
 use rustc_session::{
     config::{self, OutputFilenames, PrintRequest},
-    cstore::MetadataLoaderDyn,
     Session,
 };
 use rustc_span::symbol::Symbol;