syntax_data: {"ast_node_type":"function","tokens":[{"end":93,"kind":"keyword","start":0,"text":"fn"}]}
source_snippet:     fn iter_in_block(body: &mir::Body<'_>, block: BasicBlock) -> impl Iterator<Item = Self> {
context_before:     /// `BlockEntry`.
context_after:         let statements_and_terminator = (0..=body[block].statements.len())