darcs patch: make stage1 type-class-extension-free (for ticket #1405)

[Isaac Dupree]

Isaac Dupree wrote:
> Simon Peyton-Jones wrote:
>> Isaac
>>
>> Thanks for your work on this.
>>
>> However, can you hold off committing until Simon and I have been back 
>> at work for a few days?  I'm not back at all until 4 Jan.
> 
> sure thing!  Make that 10 January then.

or maybe I should have looked at a calendar first... 12 January might be 
better, assuming it's Monday-Friday you're at work?  (I'm heading back 
to school around the 19th, at which point I won't have much time to work 
on this.  But I hope to send some more patches before then.)

Isaac