Update test output.

src/test/ui/suggestions/boxed-variant-field.rs

@@ -9,7 +9,7 @@ fn foo(x: Ty) -> Ty {
         Ty::List(elem) => foo(elem),
         //~^ ERROR mismatched types
         //~| HELP try dereferencing the `Box`
-        //~| HELP try using a variant of the expected enum
+        //~| HELP try wrapping
     }
 }
 

src/test/ui/suggestions/boxed-variant-field.stderr

@@ -10,10 +10,10 @@ help: try dereferencing the `Box`
    |
 LL |         Ty::List(elem) => foo(*elem),
    |                               +
-help: try using a variant of the expected enum
+help: try wrapping the expression in `Ty::List`
    |
 LL |         Ty::List(elem) => foo(Ty::List(elem)),
-   |                               ~~~~~~~~~~~~~~
+   |                               +++++++++    +
 
 error: aborting due to previous error