Unable to use qualified type names

[bgamari]

Currently it's not possible to refer to a type by its qualified name. For instance,

[yesh1|
  -- name:hello :: rowcount Int
  -- :arg    :: Data.Int.Int
  ...
|]

[tdammers]

Correct; the parser was kept as dumb as humanly possible in order to avoid (unsuccessfully, even, as evidenced by #7) clashes with SQL syntax, and also to avoid having half a Haskell parser embedded in the extended-SQL parser. I think allowing dots wouldn't be a problem though.