Adjust test to still show miscompile

The capture of i in assert_ne!() is now known read-only, which
enables early SROA. Block this by passing i to println, where
we currently cannot recognize this.

Author: nikic

tests/ui/codegen/equal-pointers-unequal/as-cast/segfault.rs

@@ -55,6 +55,7 @@ fn main() {
     // The `Box` has been deallocated by now, so this is a dangling reference!
     let r: &u8 = &*r;
     println!("{:p}", r);
+    println!("{}", i);
 
     // The following might segfault. Or it might not.
     // Depends on the platform semantics

tests/ui/codegen/equal-pointers-unequal/exposed-provenance/segfault.rs

@@ -58,6 +58,7 @@ fn main() {
     // The `Box` has been deallocated by now, so this is a dangling reference!
     let r: &u8 = &*r;
     println!("{:p}", r);
+    println!("{}", i);
 
     // The following might segfault. Or it might not.
     // Depends on the platform semantics

tests/ui/codegen/equal-pointers-unequal/strict-provenance/segfault.rs

@@ -58,6 +58,7 @@ fn main() {
     // The `Box` has been deallocated by now, so this is a dangling reference!
     let r: &u8 = &*r;
     println!("{:p}", r);
+    println!("{}", i);
 
     // The following might segfault. Or it might not.
     // Depends on the platform semantics