Add regression test for #69414

Closes #69414 (no longer ICEs after #74159)

Author: Alexendoo

src/test/ui/const-generics/const-param-type-depends-on-type-param-ungated.rs

@@ -1,3 +1,6 @@
+// compile-flags: -Zsave-analysis
+// Regression test for #69414 ^
+
 use std::marker::PhantomData;
 
 struct B<T, const N: T>(PhantomData<[T; N]>); //~ ERROR const generics are unstable

src/test/ui/const-generics/const-param-type-depends-on-type-param-ungated.stderr

@@ -1,11 +1,11 @@
 error[E0770]: the type of const parameters must not depend on other generic parameters
-  --> $DIR/const-param-type-depends-on-type-param-ungated.rs:3:22
+  --> $DIR/const-param-type-depends-on-type-param-ungated.rs:6:22
    |
 LL | struct B<T, const N: T>(PhantomData<[T; N]>);
    |                      ^ the type must not depend on the parameter `T`
 
 error[E0658]: const generics are unstable
-  --> $DIR/const-param-type-depends-on-type-param-ungated.rs:3:19
+  --> $DIR/const-param-type-depends-on-type-param-ungated.rs:6:19
    |
 LL | struct B<T, const N: T>(PhantomData<[T; N]>);
    |                   ^