syntax_data: {"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// Compares via an ordering that will not change if modules are reordered or other changes are
context_before: impl<'tcx> ExistentialPredicate<'tcx> {
context_after:     /// made to the tree. In particular, this ordering is preserved across incremental compilations.