syntax_data: {"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"///"}]}
source_snippet:     /// syntax (e.g. `continue` or `if !`) that would otherwise not appear in MIR.
context_before:     /// This results in more accurate coverage reports for certain kinds of
context_after:     pub(crate) fn push_coverage_span_marker(&mut self, block: BasicBlock, source_info: SourceInfo) {