message: Re-enable fixed libcore tests
  They were fixed in
diff: @@ -39,46 +39,6 @@ index a35897e..f0bf645 100644
  pub fn decode_finite<T: DecodableFloat>(v: T) -> Decoded {
  match decode(v).1 {
  -diff --git a/library/core/tests/num/int_macros.rs b/library/core/tests/num/int_macros.rs
  -index 0475aeb..9558198 100644
  ---- a/library/core/tests/num/int_macros.rs
  -+++ b/library/core/tests/num/int_macros.rs
  -@@ -88,6 +88,7 @@ mod tests {
  - assert_eq!(x.trailing_ones(), 0);
  - }
  -
  -+ /*
  - #[test]
  - fn test_rotate() {
  - assert_eq!(A.rotate_left(6).rotate_right(2).rotate_right(4), A);
  -@@ -112,6 +113,7 @@ mod tests {
  - assert_eq!(B.rotate_left(128), B);
  - assert_eq!(C.rotate_left(128), C);
  - }
  -+ */
  -
  - #[test]
  - fn test_swap_bytes() {
  -diff --git a/library/core/tests/num/uint_macros.rs b/library/core/tests/num/uint_macros.rs
  -index 04ed14f..a6e372e 100644
  ---- a/library/core/tests/num/uint_macros.rs
  -+++ b/library/core/tests/num/uint_macros.rs
  -@@ -52,6 +52,7 @@ mod tests {
  - assert_eq!(x.trailing_ones(), 0);
  - }
  -
  -+ /*
  - #[test]
  - fn test_rotate() {
  - assert_eq!(A.rotate_left(6).rotate_right(2).rotate_right(4), A);
  -@@ -76,6 +77,7 @@ mod tests {
  - assert_eq!(B.rotate_left(128), B);
  - assert_eq!(C.rotate_left(128), C);
  - }
  -+ */
  -
  - #[test]
  - fn test_swap_bytes() {
  diff --git a/library/core/tests/ptr.rs b/library/core/tests/ptr.rs
  index 1a6be3a..42dbd59 100644
  --- a/library/core/tests/ptr.rs
  