Update weirdly failing ui tests

tests/ui/codegen/equal-pointers-unequal/as-cast/inline2.rs

@@ -23,7 +23,7 @@ fn main() {
         let v = 0;
         &v as *const _ as usize
     };
-    assert_eq!(a.to_string(), b.to_string());
+    assert_eq!(format!("{a}"), format!("{b}"));
     assert_eq!(format!("{}", a == b), "true");
     assert_eq!(format!("{}", cmp_in(a, b)), "true");
     assert_eq!(format!("{}", cmp(a, b)), "true");

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

@@ -21,7 +21,7 @@ fn main() {
     // It's not zero, which means `a` and `b` are not equal.
     assert_ne!(i, 0);
     // But it looks like zero...
-    assert_eq!(i.to_string(), "0");
+    assert_eq!(format!("{i}"), "0");
     // ...and now it *is* zero?
     assert_eq!(i, 0);
     // So `a` and `b` are equal after all?

tests/ui/codegen/equal-pointers-unequal/exposed-provenance/inline2.rs

@@ -25,7 +25,7 @@ fn main() {
         let v = 0;
         ptr::from_ref(&v).expose_provenance()
     };
-    assert_eq!(a.to_string(), b.to_string());
+    assert_eq!(format!("{a}"), format!("{b}"));
     assert_eq!(format!("{}", a == b), "true");
     assert_eq!(format!("{}", cmp_in(a, b)), "true");
     assert_eq!(format!("{}", cmp(a, b)), "true");

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

@@ -23,7 +23,7 @@ fn main() {
     // It's not zero, which means `a` and `b` are not equal.
     assert_ne!(i, 0);
     // But it looks like zero...
-    assert_eq!(i.to_string(), "0");
+    assert_eq!(format!("{i}"), "0");
     // ...and now it *is* zero?
     assert_eq!(i, 0);
     // So `a` and `b` are equal after all?

tests/ui/codegen/equal-pointers-unequal/strict-provenance/inline2.rs

@@ -25,7 +25,7 @@ fn main() {
         let v = 0;
         ptr::from_ref(&v).addr()
     };
-    assert_eq!(a.to_string(), b.to_string());
+    assert_eq!(format!("{a}"), format!("{b}"));
     assert_eq!(format!("{}", a == b), "true");
     assert_eq!(format!("{}", cmp_in(a, b)), "true");
     assert_eq!(format!("{}", cmp(a, b)), "true");

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

@@ -23,7 +23,7 @@ fn main() {
     // It's not zero, which means `a` and `b` are not equal.
     assert_ne!(i, 0);
     // But it looks like zero...
-    assert_eq!(i.to_string(), "0");
+    assert_eq!(format!("{i}"), "0");
     // ...and now it *is* zero?
     assert_eq!(i, 0);
     // So `a` and `b` are equal after all?