syntax_data: {"ast_node_type":"function","tokens":[{"end":56,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet:     pub fn type_id_hash(self, ty: Ty<'tcx>) -> Hash128 {
context_before:     /// context it's calculated within. This is used by the `type_id` intrinsic.
context_after:         // We want the type_id be independent of the types free regions, so we