Apply structured suggestion that allows test to work since 1.64

Close #73497.

Author: estebank

tests/ui/issues/issue-16922.fixed

@@ -0,0 +1,11 @@
+// run-rustfix
+use std::any::Any;
+
+fn foo<T: Any>(value: &T) -> Box<dyn Any + '_> {
+    Box::new(value) as Box<dyn Any>
+    //~^ ERROR lifetime may not live long enough
+}
+
+fn main() {
+    let _ = foo(&5);
+}

tests/ui/issues/issue-16922.rs

@@ -1,3 +1,4 @@
+// run-rustfix
 use std::any::Any;
 
 fn foo<T: Any>(value: &T) -> Box<dyn Any> {

tests/ui/issues/issue-16922.stderr

@@ -1,5 +1,5 @@
 error: lifetime may not live long enough
-  --> $DIR/issue-16922.rs:4:5
+  --> $DIR/issue-16922.rs:5:5
    |
 LL | fn foo<T: Any>(value: &T) -> Box<dyn Any> {
    |                       - let's call the lifetime of this reference `'1`