syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"hcx.while_hashing_spans(false,"}]}
source_snippet:             hcx.while_hashing_spans(false, |hcx| ty.hash_stable(hcx, &mut hasher));
context_before:             let mut hasher = StableHasher::new();
context_after:             hasher.finish()