fixed tests

Author: michirakara

tests/ui/impl-trait/example-calendar.rs

@@ -156,7 +156,7 @@ impl<'a, 'b> std::ops::Add<&'b NaiveDate> for &'a NaiveDate {
 }
 
 impl std::iter::Step for NaiveDate {
-    fn steps_between(_: &Self, _: &Self) -> Option<usize> {
+    fn steps_between(_: &Self, _: &Self) -> (usize, Option<usize>) {
         unimplemented!()
     }
 

tests/ui/issues/issue-48006.rs

@@ -6,10 +6,10 @@ use std::iter::Step;
 
 #[cfg(target_pointer_width = "16")]
 fn main() {
-    assert!(Step::steps_between(&0u32, &u32::MAX).is_none());
+    assert!(Step::steps_between(&0u32, &u32::MAX).1.is_none());
 }
 
 #[cfg(any(target_pointer_width = "32", target_pointer_width = "64"))]
 fn main() {
-    assert!(Step::steps_between(&0u32, &u32::MAX).is_some());
+    assert!(Step::steps_between(&0u32, &u32::MAX).1.is_some());
 }