syntax_data: {"ast_node_type":"other","tokens":[{"end":81,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // Since any predicates after the first one shouldn't change the binders,
context_before:         // [<Trait> [{<Projection>}]] [{<Auto>}]
context_after:         // just put them all in the binders of the first.