syntax_data: {"ast_node_type":"variable","tokens":[{"end":49,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:                 let func_ty = func.ty(body, tcx);
context_before:             TerminatorKind::Call { func, .. } => {
context_after:                 if let ty::FnDef(def_id, _) = *func_ty.kind()