syntax_data: {"ast_node_type":"other","tokens":[{"end":50,"kind":"keyword","start":0,"text":"Err(report_negative_positive_conflict("}]}
source_snippet:             Err(report_negative_positive_conflict(
context_before:         (ty::ImplPolarity::Positive, ty::ImplPolarity::Negative) => {
context_after:                 tcx,