Function rustc_llvm_proxy::proxy::LLVMWriteBitcodeToFD

#[no_mangle]
pub unsafe extern "C" fn LLVMWriteBitcodeToFD(
    M: LLVMModuleRef, 
    FD: c_int, 
    ShouldClose: c_int, 
    Unbuffered: c_int
) -> c_int