Do not eagerly fold consts in normalize_param_env_or_error if new solver

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/ui/traits/next-solver/no-param-env-const-fold.rs b/tests/ui/traits/next-solver/no-param-env-const-fold.rs
new file mode 100644
index 00000000000..4f47332dd23
--- /dev/null
+++ b/tests/ui/traits/next-solver/no-param-env-const-fold.rs
@@ -0,0 +1,10 @@
+//@ check-pass
+//@ compile-flags: -Znext-solver
+
+// Regression test for <https://github.com/rust-lang/trait-system-refactor-initiative/issues/213>.
+
+use std::ops::Deref;
+
+trait Trait: Deref<Target = [u8; { 1 + 1 }]> {}
+
+fn main() {}