syntax_data: {"ast_node_type":"other","tokens":[{"end":44,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                 // types/lifetimes replaced)
context_before:                 // fetch the fully liberated fn signature (that is, all bound
context_after:                 BodyTy::Fn(typeck_results.liberated_fn_sigs()[hir_id])