syntax_data: {"ast_node_type":"other","tokens":[{"end":56,"kind":"keyword","start":0,"text":"(Some(tcx),"}]}
source_snippet:                 (Some(tcx), None) => tcx.dcx().bug(msg),
context_before:                 (Some(tcx), Some(span)) => tcx.dcx().span_bug(span, msg),
context_after:                 (None, _) => panic_any(msg),