syntax_data: {"ast_node_type":"other","tokens":[{"end":11,"kind":"keyword","start":0,"text":")"}]}
source_snippet: ) -> bool {
context_before:     (specializing_impl_def_id, parent_impl_def_id): (DefId, DefId),
context_after:     // We check that the specializing impl comes from a crate that has specialization enabled,