syntax_data: {"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // bottom = initialized (`initialize_start_block` overwrites this on first entry)
context_before:     fn bottom_value(&self, _: &mir::Body<'tcx>) -> Self::Domain {
context_after:         MixedBitSet::new_empty(self.move_data().move_paths.len())