Show diff suggestion format on verbose replacement

```
error[E0610]: `{integer}` is a primitive type and therefore doesn't have fields
  --> $DIR/attempted-access-non-fatal.rs:7:15
   |
LL |     let _ = 2.l;
   |               ^
   |
help: if intended to be a floating point literal, consider adding a `0` after the period and a `f64` suffix
   |
LL -     let _ = 2.l;
LL +     let _ = 2.0f64;
   |
```

1 files changed, 3 insertions, 2 deletions

diff --git a/tests/ui/stdlib-unit-tests/atomic-from-mut-not-available.alignment_mismatch.stderr b/tests/ui/stdlib-unit-tests/atomic-from-mut-not-available.alignment_mismatch.stderr
index 47b17f9fcd7..6a8a7b152c5 100644
--- a/tests/ui/stdlib-unit-tests/atomic-from-mut-not-available.alignment_mismatch.stderr
+++ b/tests/ui/stdlib-unit-tests/atomic-from-mut-not-available.alignment_mismatch.stderr
@@ -9,8 +9,9 @@ note: if you're trying to build a new `AtomicU64`, consider using `AtomicU64::ne
    = note: this error originates in the macro `atomic_int` (in Nightly builds, run with -Z macro-backtrace for more info)
 help: there is an associated function `from` with a similar name
    |
-LL |     core::sync::atomic::AtomicU64::from(&mut 0u64);
-   |                                    ~~~~
+LL -     core::sync::atomic::AtomicU64::from_mut(&mut 0u64);
+LL +     core::sync::atomic::AtomicU64::from(&mut 0u64);
+   |
 
 error: aborting due to 1 previous error