Rename ret_ty to declared_ret_ty

Author: leoyvens

src/librustc_typeck/check/mod.rs

@@ -1036,9 +1036,9 @@ fn check_fn<'a, 'gcx, 'tcx>(inherited: &'a Inherited<'a, 'gcx, 'tcx>,
     let mut fcx = FnCtxt::new(inherited, param_env, body.value.id);
     *fcx.ps.borrow_mut() = UnsafetyState::function(fn_sig.unsafety, fn_id);
 
-    let ret_ty = fn_sig.output();
-    fcx.require_type_is_sized(ret_ty, decl.output.span(), traits::SizedReturnType);
-    let revealed_ret_ty = fcx.instantiate_anon_types_from_return_value(fn_id, &ret_ty);
+    let declared_ret_ty = fn_sig.output();
+    fcx.require_type_is_sized(declared_ret_ty, decl.output.span(), traits::SizedReturnType);
+    let revealed_ret_ty = fcx.instantiate_anon_types_from_return_value(fn_id, &declared_ret_ty);
     fcx.ret_coercion = Some(RefCell::new(CoerceMany::new(revealed_ret_ty)));
     fn_sig = fcx.tcx.mk_fn_sig(
         fn_sig.inputs().iter().cloned(),
@@ -1132,7 +1132,7 @@ fn check_fn<'a, 'gcx, 'tcx>(inherited: &'a Inherited<'a, 'gcx, 'tcx>,
             if id == fn_id {
                 match entry_type {
                     config::EntryMain => {
-                        let substs = fcx.tcx.mk_substs(iter::once(Kind::from(ret_ty)));
+                        let substs = fcx.tcx.mk_substs(iter::once(Kind::from(declared_ret_ty)));
                         let trait_ref = ty::TraitRef::new(term_id, substs);
                         let return_ty_span = decl.output.span();
                         let cause = traits::ObligationCause::new(