syntax_data: {"ast_node_type":"other","tokens":[{"end":43,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // simpler to keep it this way for now.
context_before:     // also needs to keep track of how many conflicts each local has, so it's
context_after:     let mut storage_conflicts = BitMatrix::new(saved_locals.count(), saved_locals.count());