Parser fix for being handed an empty type declaration expression.
Parser fix for being handed an empty type declaration expression.

briantrice/slate-language,briantrice/slate-language,krfkeith/slate-language,briantrice/slate-language,krfkeith/slate-language,briantrice/slate-language,krfkeith/slate-language,briantrice/slate-language,krfkeith/slate-language,briantrice/slate-language,krfkeith/slate-language,krfkeith/slate-language