[Feature] Allow using references when serializing contract calls to bytes

[jkylling]

Component

other

Describe the feature you would like

There should be a way to serialize contract calls to bytes using references. For code like

fn my_call(input: &Address, output: &[Address]) -> Vec<u8> {
    MyContract::myCall::new((*target, output.to_vec()))
        .abi_encode() // Immediately throws away to_vec() allocation
}

we should also allow some variation of

fn my_call(input: &Address, output: &[Address]) -> Vec<u8> {
    MyContract::myCall::new((target, output))
        .abi_encode()
}

Additional context

No response

[mattsse]

could you please also share the generated code of that function?