syntax_data: {"ast_node_type":"variable","tokens":[{"end":87,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let id = tcx.allocate_bytes_dedup(byte_sym.as_byte_str(), CTFE_ALLOC_SALT);
context_before:         (ast::LitKind::ByteStr(byte_sym, _), ty::Ref(_, inner_ty, _)) if inner_ty.is_array() => {
context_after:             ConstValue::Scalar(Scalar::from_pointer(id.into(), &tcx))