re-instate broken test no longer broken

Author: ablaom

test/data_utils.jl

@@ -38,7 +38,7 @@ end
     x = categorical(['a','b','a'])
     @test int(x[1]) == 0x01
     @test int(x[2]) == 0x02
-    @test_broken int(x[2]) isa UInt32
+    @test int(x[2]) isa UInt32
     @test int(x[1], type=Int64) == 1
     @test int(x[1], type=Int64) isa Int64
 end