_IMAGE_LINENUMBER

Metadatacopy
struct _IMAGE_LINENUMBER {
    union {
        unsigned long SymbolTableIndex;/* 0x0  4 */
        unsigned long VirtualAddress;/* 0x0  4 */
    } Type;/* 0x0  4 */
    unsigned short Linenumber;/* 0x4  2 */
};
/* computed: December 1991 pre-release CD, MSTOOLS/BIN/OS2/I386KD.EXE CodeView 3 types (compiled 1-byte packed for its 16-bit host), laid out with natural 32-bit alignment */