[gcc r17-3070] gccrs: Rename error type

https://gcc.gnu.org/g:9dbda55157e60914ac3aabd1058d0963fb4182d8

commit r17-3070-g9dbda55157e60914ac3aabd1058d0963fb4182d8
Author: Pierre-Emmanuel Patry <[email protected]>
Date:   Mon Jun 29 20:58:32 2026 +0200

    gccrs: Rename error type
    
    gcc/rust/ChangeLog:
    
            * rust-session-manager.cc (Session::dump_hir_pretty): Update error type
            name.
            (Session::load_extern_crate): Likewise.
            * rust-session-manager.h: Change error type name.
    
    Signed-off-by: Pierre-Emmanuel Patry <[email protected]>

Diff:
---
 gcc/rust/rust-session-manager.cc | 11 +++++------
 gcc/rust/rust-session-manager.h  | 16 ++++++++--------
 2 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/gcc/rust/rust-session-manager.cc b/gcc/rust/rust-session-manager.cc
index bb873f3204a3..011ca8b99e88 100644
--- a/gcc/rust/rust-session-manager.cc
+++ b/gcc/rust/rust-session-manager.cc
@@ -1240,7 +1240,7 @@ Session::dump_hir_pretty (HIR::Crate &crate) const
 
 // imports
 
-tl::expected<Session::LoadedCrate, Session::AlreadyLoadedError>
+tl::expected<Session::LoadedCrate, Session::LoadingError>
 Session::load_extern_crate (const std::string &crate_name, location_t locus)
 {
   // has it already been loaded?
@@ -1250,7 +1250,7 @@ Session::load_extern_crate (const std::string &crate_name, location_t locus)
       rust_assert (resolved_node_id);
 
       return tl::make_unexpected (
-	AlreadyLoadedError::make_already_loaded (*resolved_node_id));
+	LoadingError::make_already_loaded (*resolved_node_id));
     }
 
   std::string relative_import_path = "";
@@ -1280,7 +1280,7 @@ Session::load_extern_crate (const std::string &crate_name, location_t locus)
       && proc_macros.empty ()) // no proc macros
     {
       rust_error_at (locus, "failed to locate crate %qs", import_name.c_str ());
-      return tl::make_unexpected (AlreadyLoadedError::make_failed_to_locate ());
+      return tl::make_unexpected (LoadingError::make_failed_to_locate ());
     }
 
   auto extern_crate
@@ -1294,8 +1294,7 @@ Session::load_extern_crate (const std::string &crate_name, location_t locus)
       if (!ok)
 	{
 	  rust_error_at (locus, "failed to load crate metadata");
-	  return tl::make_unexpected (
-	    AlreadyLoadedError::make_failed_to_locate ());
+	  return tl::make_unexpected (LoadingError::make_failed_to_locate ());
 	}
     }
 
@@ -1305,7 +1304,7 @@ Session::load_extern_crate (const std::string &crate_name, location_t locus)
     {
       rust_error_at (locus, "current crate name %qs collides with this",
 		     current_crate_name.c_str ());
-      return tl::make_unexpected (AlreadyLoadedError::make_collision ());
+      return tl::make_unexpected (LoadingError::make_collision ());
     }
 
   // setup mappings
diff --git a/gcc/rust/rust-session-manager.h b/gcc/rust/rust-session-manager.h
index 620a14f8ec38..930012a7bd7f 100644
--- a/gcc/rust/rust-session-manager.h
+++ b/gcc/rust/rust-session-manager.h
@@ -444,7 +444,7 @@ public:
     Resolver2_0::NameResolutionContext ctx;
   };
 
-  struct AlreadyLoadedError
+  struct LoadingError
   {
   public:
     enum class Kind
@@ -454,24 +454,24 @@ public:
       COLLISION,
     } kind;
 
-    static AlreadyLoadedError make_already_loaded (NodeId node_id)
+    static LoadingError make_already_loaded (NodeId node_id)
     {
-      return AlreadyLoadedError{Kind::ALREADY_LOADED, node_id};
+      return LoadingError{Kind::ALREADY_LOADED, node_id};
     }
 
-    static AlreadyLoadedError make_failed_to_locate ()
+    static LoadingError make_failed_to_locate ()
     {
-      return AlreadyLoadedError{Kind::FAILED_TO_LOCATE, UNKNOWN_NODEID};
+      return LoadingError{Kind::FAILED_TO_LOCATE, UNKNOWN_NODEID};
     }
 
-    static AlreadyLoadedError make_collision ()
+    static LoadingError make_collision ()
     {
-      return AlreadyLoadedError{Kind::COLLISION, UNKNOWN_NODEID};
+      return LoadingError{Kind::COLLISION, UNKNOWN_NODEID};
     }
     NodeId node_id;
   };
 
-  tl::expected<LoadedCrate, AlreadyLoadedError>
+  tl::expected<LoadedCrate, LoadingError>
   load_extern_crate (const std::string &crate_name, location_t locus);
 
 private: