Move /src/test to /tests

src/test/ui/object-lifetime/object-lifetime-default-from-rptr-struct-error.stderr

@@ -1,10 +0,0 @@
-error: lifetime may not live long enough
-  --> $DIR/object-lifetime-default-from-rptr-struct-error.rs:20:5
-   |
-LL | fn c<'a>(t: &'a MyBox<dyn Test+'a>, mut ss: SomeStruct<'a>) {
-   |      -- lifetime `'a` defined here
-LL |     ss.t = t;
-   |     ^^^^^^^^ assignment requires that `'a` must outlive `'static`
-
-error: aborting due to previous error
-