Fix nondeterministic highlighting (#3275)

* Fix nondeterministic highlighting

This is done by prefering matches in the begining, ie for
`keyword.function`, `keyword` is a better match than `function`.

* Use all positions and not just leftmost

Fixes possible edgecase with something like `function.method.builtin`
and the queries `function.builtin` and `function.method`

* Switch to bitmask for slightly better performance

* Make matches from the start of string

Also change comments to match new behaviour

0 files changed, 0 insertions, 0 deletions