syntax_data: {"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":")"}]}
source_snippet:     ) -> FxIndexSet<IntercrateAmbiguityCause<'tcx>> {
context_before:         &mut self,
context_after:         assert_matches!(self.infcx.typing_mode(), TypingMode::Coherence);