Syntax highlighting missing for 3rd+ mutually recursive type

Nobody has claimed this yet.

The "type" ... "and" syntax works for the first "type" and the first "and", but each subsequent "and" is not highlighted correctly:


```
type firstBlock = {
headline: list(shape),
body: list(middleBlock),
tail: option(lastBlock),
}
and middleBlock = {
headline: list(shape),
sections: list(section),
}
and lastBlock = {headline: list(shape)}
/* A section is used by "middleBlock" to keep track of the number of "mouths" (e.g. for if/else blocks) */
and section = {
body: list(middleBlock),
tail: option(lastBlock),
footline: list(shape),
};
```

Use the recursive type declaration example in the issue as the reproduction case, then locate the syntax-highlighting implementation for Reason type declarations. Check how the first `type` and `and` are recognized and compare that with subsequent `and` tokens. Done means every `and` in the example is highlighted consistently.

Written by the indexing model from the issue text.