Function LLVMOrcSetIndirectStubPointer 

pub unsafe extern "C" fn LLVMOrcSetIndirectStubPointer(
    JITStack: *mut LLVMOrcOpaqueJITStack,
    StubName: *const i8,
    NewAddr: u64,
) -> LLVMOrcErrorCode

Set the pointer for the given indirect stub.