syntax_data: {"ast_node_type":"other","tokens":[{"end":85,"kind":"keyword","start":0,"text":"ConstValue::Slice"}]}
source_snippet:             ConstValue::Slice { alloc_id: allocation, meta: len.try_into().unwrap() }
context_before:             let allocation = tcx.allocate_bytes_dedup(data, CTFE_ALLOC_SALT);
context_after:         }