syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // would mangle the binders twice. (Also, side note, we merging these
context_before:         // can't enter/exit the "binder scope" twice though, because then we
context_after:         // two is kind of difficult, because of potential HRTBs in the Projection