syntax_data: {"ast_node_type":"variable","tokens":[{"end":88,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let fn_trait_kind = p.tcx().fn_trait_kind_from_def_id(principal.def_id);
context_before:                 // Special-case `Fn(...) -> ...` and re-sugar it.
context_after:                 if !p.should_print_verbose() && fn_trait_kind.is_some() {