syntax_data: {"ast_node_type":"other","tokens":[{"end":64,"kind":"keyword","start":0,"text":"tiny_const_eval_limit:"}]}
source_snippet:     tiny_const_eval_limit: bool = (false, parse_bool, [TRACKED],
context_before:         "the format to use for -Z time-passes (`text` (default) or `json`)"),
context_after:         "sets a tiny, non-configurable limit for const eval; useful for compiler tests"),