make ConstEvaluatable more strict

src/test/ui/const_evaluatable/associated_const.rs

@@ -0,0 +1,11 @@
+// check-pass
+struct Foo<T>(T);
+impl<T> Foo<T> {
+    const VALUE: usize = std::mem::size_of::<T>();
+}
+
+fn test<T>() {
+    let _ = [0; Foo::<u8>::VALUE];
+}
+
+fn main() {}

src/test/ui/enum-discriminant/issue-70453-polymorphic-ctfe.rs

@@ -1,5 +1,3 @@
-// run-pass
-
 #![feature(arbitrary_enum_discriminant, core_intrinsics)]
 
 extern crate core;
@@ -9,6 +7,7 @@ use core::intrinsics::discriminant_value;
 enum MyWeirdOption<T> {
     None = 0,
     Some(T) = core::mem::size_of::<*mut T>(),
+    //~^ ERROR constant expression depends on a generic parameter
 }
 
 fn main() {

src/test/ui/enum-discriminant/issue-70453-polymorphic-ctfe.stderr

@@ -0,0 +1,10 @@
+error: constant expression depends on a generic parameter
+  --> $DIR/issue-70453-polymorphic-ctfe.rs:9:15
+   |
+LL |     Some(T) = core::mem::size_of::<*mut T>(),
+   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: this may fail depending on what value the parameter takes
+
+error: aborting due to previous error
+

src/test/ui/impl-trait/issue-56445.rs

@@ -5,8 +5,7 @@
 
 use std::marker::PhantomData;
 
-pub struct S<'a>
-{
+pub struct S<'a> {
     pub m1: PhantomData<&'a u8>,
     pub m2: [u8; S::size()],
 }

src/test/ui/lazy_normalization_consts/issue-73980.rs

@@ -1,4 +1,3 @@
-// check-pass
 #![feature(lazy_normalization_consts)]
 #![allow(incomplete_features)]
 
@@ -10,5 +9,6 @@ impl<T: ?Sized> L<T> {
 }
 
 impl<T> X<T, [u8; L::<T>::S]> {}
+//~^ ERROR constant expression depends on a generic parameter
 
 fn main() {}

src/test/ui/lazy_normalization_consts/issue-73980.stderr

@@ -0,0 +1,10 @@
+error: constant expression depends on a generic parameter
+  --> $DIR/issue-73980.rs:11:9
+   |
+LL | impl<T> X<T, [u8; L::<T>::S]> {}
+   |         ^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: this may fail depending on what value the parameter takes
+
+error: aborting due to previous error
+