pub unsafe extern "C" fn LLVMOrcExecutionSessionLookup(
    ES: LLVMOrcExecutionSessionRef,
    K: LLVMOrcLookupKind,
    SearchOrder: LLVMOrcCJITDylibSearchOrder,
    SearchOrderSize: usize,
    Symbols: LLVMOrcCLookupSet,
    SymbolsSize: usize,
    HandleResult: LLVMOrcExecutionSessionLookupHandleResultFunction,
    Ctx: *mut c_void
)