Add a TyPat in the AST to reuse the generic arg lowering logic

1 files changed, 15 insertions, 0 deletions

diff --git a/compiler/rustc_resolve/src/late.rs b/compiler/rustc_resolve/src/late.rs
index 508bd831ccb..03aeb8720ca 100644
--- a/compiler/rustc_resolve/src/late.rs
+++ b/compiler/rustc_resolve/src/late.rs
@@ -923,6 +923,21 @@ impl<'ra: 'ast, 'ast, 'tcx> Visitor<'ast> for LateResolutionVisitor<'_, 'ast, 'r
         self.diag_metadata.current_trait_object = prev;
         self.diag_metadata.current_type_path = prev_ty;
     }
+
+    fn visit_ty_pat(&mut self, t: &'ast TyPat) -> Self::Result {
+        match &t.kind {
+            TyPatKind::Range(start, end, _) => {
+                if let Some(start) = start {
+                    self.resolve_anon_const(start, AnonConstKind::ConstArg(IsRepeatExpr::No));
+                }
+                if let Some(end) = end {
+                    self.resolve_anon_const(end, AnonConstKind::ConstArg(IsRepeatExpr::No));
+                }
+            }
+            TyPatKind::Err(_) => {}
+        }
+    }
+
     fn visit_poly_trait_ref(&mut self, tref: &'ast PolyTraitRef) {
         let span = tref.span.shrink_to_lo().to(tref.trait_ref.path.span.shrink_to_lo());
         self.with_generic_param_rib(