syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"\"encode"}]}
source_snippet:         "encode MIR of all functions into the crate metadata (default: no)"),
context_before:     always_encode_mir: bool = (false, parse_bool, [TRACKED],
context_after:     assert_incr_state: Option<String> = (None, parse_opt_string, [UNTRACKED],