Rollup merge of rust-lang#63403 - sntdevco:master, r=Centril

Improve test output

I'm continuing to improve the test output for liballoc and libcore

Author: Centril

src/liballoc/tests/btree/set.rs

@@ -10,7 +10,7 @@ fn test_clone_eq() {
     m.insert(1);
     m.insert(2);
 
-    assert!(m.clone() == m);
+    assert_eq!(m.clone(), m);
 }
 
 #[test]
@@ -28,7 +28,7 @@ fn test_hash() {
     y.insert(2);
     y.insert(1);
 
-    assert!(hash(&x) == hash(&y));
+    assert_eq!(hash(&x), hash(&y));
 }
 
 fn check<F>(a: &[i32], b: &[i32], expected: &[i32], f: F)

src/libcore/tests/slice.rs

@@ -3,19 +3,19 @@ use core::result::Result::{Ok, Err};
 #[test]
 fn test_position() {
     let b = [1, 2, 3, 5, 5];
-    assert!(b.iter().position(|&v| v == 9) == None);
-    assert!(b.iter().position(|&v| v == 5) == Some(3));
-    assert!(b.iter().position(|&v| v == 3) == Some(2));
-    assert!(b.iter().position(|&v| v == 0) == None);
+    assert_eq!(b.iter().position(|&v| v == 9), None);
+    assert_eq!(b.iter().position(|&v| v == 5), Some(3));
+    assert_eq!(b.iter().position(|&v| v == 3), Some(2));
+    assert_eq!(b.iter().position(|&v| v == 0), None);
 }
 
 #[test]
 fn test_rposition() {
     let b = [1, 2, 3, 5, 5];
-    assert!(b.iter().rposition(|&v| v == 9) == None);
-    assert!(b.iter().rposition(|&v| v == 5) == Some(4));
-    assert!(b.iter().rposition(|&v| v == 3) == Some(2));
-    assert!(b.iter().rposition(|&v| v == 0) == None);
+    assert_eq!(b.iter().rposition(|&v| v == 9), None);
+    assert_eq!(b.iter().rposition(|&v| v == 5), Some(4));
+    assert_eq!(b.iter().rposition(|&v| v == 3), Some(2));
+    assert_eq!(b.iter().rposition(|&v| v == 0), None);
 }
 
 #[test]

src/libcore/tests/time.rs

@@ -2,7 +2,7 @@ use core::time::Duration;
 
 #[test]
 fn creation() {
-    assert!(Duration::from_secs(1) != Duration::from_secs(0));
+    assert_ne!(Duration::from_secs(1), Duration::from_secs(0));
     assert_eq!(Duration::from_secs(1) + Duration::from_secs(2),
                Duration::from_secs(3));
     assert_eq!(Duration::from_millis(10) + Duration::from_secs(4),