Support 6.10
Support 6.10

Ignore-this: edc1a0c5a53840c63aa05cd8b62c287a

We use mkNorepType instead of mkNoRepType since the latter isn't available in
6.10. The former, however, is deprecated in 6.12 and later versions which
leads to warnings. I'd be interested to know what portable code is supposed to
look like in this particular case.

darcs-hash:20100407030727-b2b0a-5126371bbad7f17613a256ae571eac19a7a9df61

rleshchinskiy/vector