Auto merge of #13628 - samueltardieu:push-puluprmsyuzq, r=xFrednet

Do not use `gen` as a variable name
`gen` will be a reserved word in Rust 2024.
changelog: none

Author: bors

clippy_lints/src/functions/ref_option.rs

@@ -15,9 +15,9 @@ use rustc_span::{Span, sym};
 fncheck_ty<'a>(cx:&LateContext<'a>,param:&rustc_hir::Ty<'a>,param_ty:Ty<'a>,fixes:&mutVec<(Span,String)>){
 iflet ty::Ref(_, opt_ty,Mutability::Not) = param_ty.kind()
  && is_type_diagnostic_item(cx,*opt_ty, sym::Option)
- && let ty::Adt(_,opt_gen) = opt_ty.kind()
- && let[gen] = opt_gen.as_slice()
- && letGenericArgKind::Type(gen_ty) = gen.unpack()
+ && let ty::Adt(_,opt_gen_args) = opt_ty.kind()
+ && let[gen_arg] = opt_gen_args.as_slice()
+ && letGenericArgKind::Type(gen_ty) = gen_arg.unpack()
  && !gen_ty.is_ref()
 // Need to gen the original spans, so first parsing mid, and hir parsing afterward
  && let hir::TyKind::Ref(lifetime, hir::MutTy{ ty, .. }) = param.kind