Apply suggestions from code review

Co-authored-by: klensy <klensy@users.noreply.github.com>
Co-authored-by: Ralf Jung <post@ralfj.de>

Author: 3 people

compiler/rustc_lint/src/implicit_unsafe_autorefs.rs

@@ -23,7 +23,7 @@ declare_lint! {
     ///
     /// When working with raw pointers it's usually undesirable to create references,
     /// since they inflict a lot of safety requirement. Unfortunately, it's possible
-    /// to take a reference to a dereferece of a raw pointer implitly, which inflicts
+    /// to take a reference to a dereference of a raw pointer implicitly, which inflicts
     /// the usual reference requirements without you even knowing that.
     /// 
     /// If you are sure, you can soundly take a reference, then you can take it explicitly:
@@ -68,9 +68,9 @@ impl<'tcx> LateLintPass<'tcx> for ImplicitUnsafeAutorefs {
             let msg = "implicit auto-ref creates a reference to a dereference of a raw pointer";
             cx.struct_span_lint(IMPLICIT_UNSAFE_AUTOREFS, expr.span, msg, |lint| {
                 lint
-                    .note("creating a reference inflicts a lot of safety requirements")
+                    .note("creating a reference requires the pointer to be valid and imposes aliasing requirements")
                     .multipart_suggestion(
-                        "if this reference is intentional, make it explicit", 
+                        "try using a raw pointer method instead; or if this reference is intentional, make it explicit", 
                         vec![
                             (expr.span.shrink_to_lo(), format!("(&{mutbl}")),
                             (expr.span.shrink_to_hi(), ")".to_owned())

src/test/ui/lint/implicit_unsafe_autorefs.stderr

@@ -1,24 +1,24 @@
 error: implicit auto-ref creates a reference to a dereference of a raw pointer
-  --> $DIR/implicit_unsafe_autoref.rs:5:18
+  --> $DIR/implicit_unsafe_autorefs.rs:5:18
    |
 LL |     addr_of_mut!((*ptr)[..16])
    |                  ^^^^^^
    |
-   = note: creating a reference inflicts a lot of safety requirements
+   = note: creating a reference requires the pointer to be valid and imposes aliasing requirements
    = note: `#[deny(implicit_unsafe_autorefs)]` on by default
-help: if this reference is intentional, make it explicit
+help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
    |
 LL |     addr_of_mut!((&mut (*ptr))[..16])
    |                  +++++       +
 
 error: implicit auto-ref creates a reference to a dereference of a raw pointer
-  --> $DIR/implicit_unsafe_autoref.rs:10:14
+  --> $DIR/implicit_unsafe_autorefs.rs:10:14
    |
 LL |     addr_of!((*ptr)[..16])
    |              ^^^^^^
    |
-   = note: creating a reference inflicts a lot of safety requirements
-help: if this reference is intentional, make it explicit
+   = note: creating a reference requires the pointer to be valid and imposes aliasing requirements
+help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
    |
 LL |     addr_of!((&(*ptr))[..16])
    |              ++      +