syntax_data: {"ast_node_type":"other","tokens":[{"end":9,"kind":"keyword","start":0,"text":"("}]}
source_snippet:         (
context_before:         let is_virtual_call = matches!(instance.def, ty::InstanceKind::Virtual(..));
context_after:             instance.def.requires_caller_location(tcx).then(|| tcx.caller_location_ty()),