Function LLVMBuildLandingPad 

#[unsafe(no_mangle)]
pub extern "C" fn LLVMBuildLandingPad(
    B: LLVMBuilderRef,
    Ty: LLVMTypeRef,
    PersFn: LLVMValueRef,
    NumClauses: c_uint,
    Name: *const c_char,
) -> LLVMValueRef