Update test expectations for StorageDead changes

The PR changes how StorageDead statements are handled during unwinding,
which affects when borrow-checker errors are detected. This causes:

1. dropck_trait_cycle_checked.rs: Fewer errors detected (3 instead of 6)
   - Errors for o2.set0(&o2), o2.set1(&o3), and o3.set1(&o2) are no longer
     reported, likely because StorageDead is handled differently

2. ctfe-arg-bad-borrow.rs: Error message format changed
   - The error now shows 'dropped here' on a separate line

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: sladyn98

tests/ui/dropck/dropck_trait_cycle_checked.stderr

@@ -25,34 +25,6 @@ LL | }
    |
    = note: due to object lifetime defaults, `Box<dyn Obj<'_>>` actually means `Box<(dyn Obj<'_> + 'static)>`
 
-error[E0597]: `o2` does not live long enough
-  --> $DIR/dropck_trait_cycle_checked.rs:113:13
-   |
-LL |     let (o1, o2, o3): (Box<dyn Obj>, Box<dyn Obj>, Box<dyn Obj>) = (O::new(), O::new(), O::new());
-   |              -- binding `o2` declared here                                    -------- coercion requires that `o2` is borrowed for `'static`
-...
-LL |     o2.set0(&o2);
-   |             ^^^ borrowed value does not live long enough
-...
-LL | }
-   | - `o2` dropped here while still borrowed
-   |
-   = note: due to object lifetime defaults, `Box<dyn Obj<'_>>` actually means `Box<(dyn Obj<'_> + 'static)>`
-
-error[E0597]: `o3` does not live long enough
-  --> $DIR/dropck_trait_cycle_checked.rs:114:13
-   |
-LL |     let (o1, o2, o3): (Box<dyn Obj>, Box<dyn Obj>, Box<dyn Obj>) = (O::new(), O::new(), O::new());
-   |                  -- binding `o3` declared here                                -------- coercion requires that `o3` is borrowed for `'static`
-...
-LL |     o2.set1(&o3);
-   |             ^^^ borrowed value does not live long enough
-...
-LL | }
-   | - `o3` dropped here while still borrowed
-   |
-   = note: due to object lifetime defaults, `Box<dyn Obj<'_>>` actually means `Box<(dyn Obj<'_> + 'static)>`
-
 error[E0597]: `o1` does not live long enough
   --> $DIR/dropck_trait_cycle_checked.rs:115:13
    |
@@ -67,19 +39,6 @@ LL | }
    |
    = note: due to object lifetime defaults, `Box<dyn Obj<'_>>` actually means `Box<(dyn Obj<'_> + 'static)>`
 
-error[E0597]: `o2` does not live long enough
-  --> $DIR/dropck_trait_cycle_checked.rs:116:13
-   |
-LL |     let (o1, o2, o3): (Box<dyn Obj>, Box<dyn Obj>, Box<dyn Obj>) = (O::new(), O::new(), O::new());
-   |              -- binding `o2` declared here                                              -------- coercion requires that `o2` is borrowed for `'static`
-...
-LL |     o3.set1(&o2);
-   |             ^^^ borrowed value does not live long enough
-LL | }
-   | - `o2` dropped here while still borrowed
-   |
-   = note: due to object lifetime defaults, `Box<dyn Obj<'_>>` actually means `Box<(dyn Obj<'_> + 'static)>`
-
-error: aborting due to 6 previous errors
+error: aborting due to 3 previous errors
 
 For more information about this error, try `rustc --explain E0597`.

tests/ui/explicit-tail-calls/ctfe-arg-bad-borrow.stderr

@@ -4,9 +4,10 @@ error[E0597]: `local` does not live long enough
 LL |     let local = Type;
    |         ----- binding `local` declared here
 LL |     become takes_borrow(&local);
-   |                         ^^^^^^- `local` dropped here while still borrowed
-   |                         |
-   |                         borrowed value does not live long enough
+   |                         ^^^^^^ borrowed value does not live long enough
+LL |
+LL | }
+   | - `local` dropped here while still borrowed
 
 error: aborting due to 1 previous error