{"ast_node_type":"other","tokens":[{"end":99,"kind":"keyword","start":0,"text":"///"}]}
///     means a BasicBlock with a `Call` terminator can be merged into its primary successor target
///     that is injected by the Rust compiler but has no physical source code to count. This also
///     block, in the same BCB. (But, note: Issue #78544: "MIR InstrumentCoverage: Improve coverage