syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// Creates a hash of the type `Ty` which will be the same no matter what crate
context_before: impl<'tcx> TyCtxt<'tcx> {
context_after:     /// context it's calculated within. This is used by the `type_id` intrinsic.