Implement derived integers, such as xs:byte and xs:unsignedShort. Check out the output:

SUMMARY:
Total: 14884
Failures: 1987
Passes: 12853
Pass percentage(%): 86
Unexpected failures: 0
Unexpected passes: 1754
Not tested: 44

That's right. 1754 test cases fixed in one commit. 12%. New record for me.

I introduced one regression: DerivedInteger.h generates a warning, see 341. I'll work on derived string types now. Should be less work for that.