[m-dev.] test for pragma fact_table

[Fergus Henderson]

David Matthew OVERTON, you wrote:
> 
> Estimated hours taken: 3
>  
> Added a new test for `pragma fact_table's.

That's a good start.

It would also be good to have some tests of type/mode/determinism
checking for fact_tables in the `tests/invalid' directory.

-- 
Fergus Henderson <fjh at cs.mu.oz.au>   |  "I have always known that the pursuit
WWW: <http://www.cs.mu.oz.au/~fjh>   |  of excellence is a lethal habit"
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