make Crystal grammar compatible with TextMate #150
Merged
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technically the current source works in VSCode only because JavaScript's indexing "works" by string coercion. in the TextMate structure these have to be maps with integer keys
additionally, there were two includes which did not properly resolve. we're not sure what these were supposed to point to, so we removed them
we made these changes to make it work with another editor which uses similar grammar structures: https://github.com/asottile/babi