add check for ConstKind::Value(_)

compiler/rustc_const_eval/src/transform/check_consts/qualifs.rs

@@ -348,11 +348,16 @@ where
     // way for type and mir constants.
     let uneval = match constant.literal {
         ConstantKind::Ty(ct)
-            if matches!(ct.kind(), ty::ConstKind::Param(_) | ty::ConstKind::Error(_)) =>
+            if matches!(
+                ct.kind(),
+                ty::ConstKind::Param(_) | ty::ConstKind::Error(_) | ty::ConstKind::Value(_)
+            ) =>
         {
             None
         }
-        ConstantKind::Ty(c) => bug!("expected ConstKind::Param here, found {:?}", c),
+        ConstantKind::Ty(c) => {
+            bug!("expected ConstKind::Param or ConstKind::Value here, found {:?}", c)
+        }
         ConstantKind::Unevaluated(uv, _) => Some(uv),
         ConstantKind::Val(..) => None,
     };