Suggestion for immutable reference -> mutable pointer should be emitted

ldm0 · ldm0 · commit 089d4bbfd79c · 2020-05-02T12:04:03.000+08:00
as `Applicability::Unspecified`
diff --git a/src/test/ui/issues/issue-71676-2.rs b/src/test/ui/issues/issue-71676-2.rs
@@ -37,7 +37,6 @@ impl DerefMut for Emm {
     }
 }
 fn main() {
-    // Should not suggest when a is immutable
     let a = Emm(Foo(Bar(0)));
     let _: *mut u8 = &a; //~ ERROR mismatched types
 }
diff --git a/src/test/ui/issues/issue-71676-2.stderr b/src/test/ui/issues/issue-71676-2.stderr
@@ -1,5 +1,5 @@
 error[E0308]: mismatched types
-  --> $DIR/issue-71676-2.rs:42:22
+  --> $DIR/issue-71676-2.rs:41:22
    |
 LL |     let _: *mut u8 = &a;
    |            -------   ^^

Original file line number	Diff line number	Diff line change
`@@ -37,7 +37,6 @@ impl DerefMut for Emm {`
`37`	`37`	`}`
`38`	`38`	`}`
`39`	`39`	`fn main() {`
`40`		`- // Should not suggest when a is immutable`
`41`	`40`	`let a = Emm(Foo(Bar(0)));`
`42`	`41`	`let _: *mut u8 = &a; //~ ERROR mismatched types`
`43`	`42`	`}`