syntax_data: {"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"sig_ty.abi_hash(tcx,"}]}
source_snippet:         sig_ty.abi_hash(tcx, &mut hasher);
context_before:         let mut hasher = StableHasher::new();
context_after:         hasher.finish::<Hash128>()