[gcc r14-8000] gccrs: Remove Gcc_backend

[gcc r14-8000] gccrs: Remove Gcc_backend

[Arthur Cohen]

https://gcc.gnu.org/g:1f09a4fedca20c0b9068d4c466b360b449af5d56

commit r14-8000-g1f09a4fedca20c0b9068d4c466b360b449af5d56
Author: Owen Avery <powerboat9.gamer@gmail.com>
Date:   Mon Sep 4 14:09:10 2023 -0400

    gccrs: Remove Gcc_backend
    
    gcc/rust/ChangeLog:
    
            * rust-backend.h
            (Backend::Backend): New.
            (Backend::~Backend): Remove.
            (class Gcc_backend): Remove.
            * rust-gcc.cc
            (Gcc_backend::Gcc_backend): Rename to ...
            (Backend::Backend): ... here.
            (rust_get_backend): Construct Backend instead of Gcc_backend.
    
    Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>

Diff:
---
 gcc/rust/rust-backend.h | 8 +-------
 gcc/rust/rust-gcc.cc    | 4 ++--
 2 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/gcc/rust/rust-backend.h b/gcc/rust/rust-backend.h
index ceb5f9f045e..1e2f7c15536 100644
--- a/gcc/rust/rust-backend.h
+++ b/gcc/rust/rust-backend.h
@@ -43,7 +43,7 @@ class Bvariable;
 class Backend
 {
 public:
-  virtual ~Backend () {}
+  Backend ();
 
   // Name/type/location.  Used for function parameters, struct fields,
   // interface methods.
@@ -466,10 +466,4 @@ protected:
   tree convert_tree (tree, tree, location_t);
 };
 
-class Gcc_backend : public Backend
-{
-public:
-  Gcc_backend ();
-};
-
 #endif // RUST_BACKEND_H
diff --git a/gcc/rust/rust-gcc.cc b/gcc/rust/rust-gcc.cc
index 3de08873550..083add4bcae 100644
--- a/gcc/rust/rust-gcc.cc
+++ b/gcc/rust/rust-gcc.cc
@@ -99,7 +99,7 @@ get_identifier_from_string (const std::string &str)
 
 // Define the built-in functions that are exposed to GCCRust.
 
-Gcc_backend::Gcc_backend ()
+Backend::Backend ()
 {
   /* We need to define the fetch_and_add functions, since we use them
      for ++ and --.  */
@@ -2474,5 +2474,5 @@ Backend::write_global_definitions (
 Backend *
 rust_get_backend ()
 {
-  return new Gcc_backend ();
+  return new Backend ();
 }