Moves changes to explicit_preds_of/inferred_outlives_of/generics_of

src/test/ui/const-generics/defaults/cec-build-subst-ice.stderr

@@ -8,5 +8,14 @@ LL | pub fn foo<const N1: usize>() -> Bar<N1> { loop {} }
    |
    = help: try adding a `where` bound using this expression: `where [(); { N + 1 }]:`
 
-error: aborting due to previous error
+error: unconstrained generic constant
+  --> $DIR/cec-build-subst-ice.rs:15:8
+   |
+LL | type Alias<T, const N: usize, const NP: usize = {N+1usize}> = [T; NP];
+   |                                                 ---------- required by this bound in `Alias::{constant#0}`
+LL | fn alias<T, const N: usize>(_: [T; N], _: T)
+LL |     -> Alias<T, N>
+   |        ^^^^^^^^^^^
+   |
+   = help: try adding a `where` bound using this expression: `where [(); {N+1usize}]:`