Fix failing test

Author: tamasvajk

csharp/ql/test/library-tests/cil/enums/enums.ql

@@ -1,4 +1,5 @@
 import semmle.code.cil.Types
 
 from Enum e
+where e.getQualifiedName() != "Interop.Sys.LockType" // doesn't exist on osx
 select e.getQualifiedName(), e.getUnderlyingType().toStringWithTypes()