syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"self.tcx.dcx().span_bug(span,"}]}
source_snippet:             self.tcx.dcx().span_bug(span, msg);
context_before:             let msg = "found twice-open range pattern (`..`) outside of error recovery";
context_after:         }