syntax_data: {"ast_node_type":"other","tokens":[{"end":78,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:     // this is twice as many bits as we need, since the relation is symmetric.
context_before:     // NOTE: Today we store a full conflict bitset for every local. Technically
context_after:     // However, in practice these bitsets are not usually large. The layout code