Remove constness from `TraitPredicate`

1 files changed, 15 insertions, 2 deletions

diff --git a/tests/ui/impl-trait/normalize-tait-in-const.stderr b/tests/ui/impl-trait/normalize-tait-in-const.stderr
index 06247e2ea1e..5fbba9a85ca 100644
--- a/tests/ui/impl-trait/normalize-tait-in-const.stderr
+++ b/tests/ui/impl-trait/normalize-tait-in-const.stderr
@@ -1,3 +1,15 @@
+error[E0015]: cannot call non-const closure in constant functions
+  --> $DIR/normalize-tait-in-const.rs:26:5
+   |
+LL |     fun(filter_positive());
+   |     ^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
+help: consider further restricting this bound
+   |
+LL | const fn with_positive<F: ~const for<'a> Fn(&'a Alias<'a>) + ~const Destruct + ~const std::ops::Fn<(&Alias<'_>,)>>(fun: F) {
+   |                                                                              ++++++++++++++++++++++++++++++++++++
+
 error[E0493]: destructor of `F` cannot be evaluated at compile-time
   --> $DIR/normalize-tait-in-const.rs:25:79
    |
@@ -7,6 +19,7 @@ LL |     fun(filter_positive());
 LL | }
    | - value is dropped here
 
-error: aborting due to previous error
+error: aborting due to 2 previous errors
 
-For more information about this error, try `rustc --explain E0493`.
+Some errors have detailed explanations: E0015, E0493.
+For more information about an error, try `rustc --explain E0015`.