Fix tests

Author: camsteffen

src/test/ui/consts/const_discriminant.rs

@@ -15,7 +15,12 @@ const TEST_A: Discriminant<Test> = discriminant(&Test::A(5));
 const TEST_A_OTHER: Discriminant<Test> = discriminant(&Test::A(17));
 const TEST_B: Discriminant<Test> = discriminant(&Test::B);
 
-enum Void {}
+mod private {
+    enum PrivateVoid {}
+    pub struct VoidS(PrivateVoid);
+    pub enum Void { X(VoidS) }
+}
+use private::Void;
 
 enum SingleVariant {
     V,

src/test/ui/consts/issue-64506.rs

@@ -6,7 +6,14 @@ pub struct ChildStdin {
 }
 
 #[derive(Copy, Clone)]
-enum AnonPipe {}
+struct AnonPipe(private::Void);
+
+mod private {
+    #[derive(Copy, Clone)]
+    pub struct Void(PrivateVoid);
+    #[derive(Copy, Clone)]
+    enum PrivateVoid {}
+}
 
 const FOO: () = {
     union Foo {