syntax_data: {"ast_node_type":"struct","tokens":[{"end":42,"kind":"keyword","start":0,"text":"pub"}]}
source_snippet: pub struct MaybeTransitiveLiveLocals<'a> {
context_before: /// All of the caveats of `MaybeLiveLocals` apply.
context_after:     always_live: &'a DenseBitSet<Local>,