{"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"//"}]}
    // encoded mapping data in bytes. Note that the length field is 32 bits.
    // A covfun record consists of four target-endian integers, followed by the
    // <https://llvm.org/docs/CoverageMappingFormat.html#llvm-ir-representation>