Re-enable some now compiling libcore tests

cc #806

Author: bjorn3

patches/0022-core-Disable-not-compiling-tests.patch

@@ -119,21 +119,5 @@ index 6609bc3..241b497 100644
 
  #[test]
  #[should_panic(expected = "index 0 greater than length of slice")]
-diff --git a/library/core/tests/num/ops.rs b/library/core/tests/num/ops.rs
-index 9979cc8..d5d1d83 100644
---- a/library/core/tests/num/ops.rs
-+++ b/library/core/tests/num/ops.rs
-@@ -238,7 +238,7 @@ macro_rules! test_shift_assign {
-         }
-     };
- }
--test_shift!(test_shl_defined, Shl::shl);
--test_shift_assign!(test_shl_assign_defined, ShlAssign::shl_assign);
--test_shift!(test_shr_defined, Shr::shr);
--test_shift_assign!(test_shr_assign_defined, ShrAssign::shr_assign);
-+//test_shift!(test_shl_defined, Shl::shl);
-+//test_shift_assign!(test_shl_assign_defined, ShlAssign::shl_assign);
-+//test_shift!(test_shr_defined, Shr::shr);
-+//test_shift_assign!(test_shr_assign_defined, ShrAssign::shr_assign);
 --
 2.21.0 (Apple Git-122)