syntax_data: {"ast_node_type":"function","tokens":[{"end":100,"kind":"keyword","start":0,"text":"pub(crate)"}]}
source_snippet:     pub(crate) fn push_coverage_span_marker(&mut self, block: BasicBlock, source_info: SourceInfo) {
context_before:     /// syntax (e.g. `continue` or `if !`) that would otherwise not appear in MIR.
context_after:         let kind = StatementKind::Coverage(coverage::CoverageKind::SpanMarker);