`try`/`catch` for `abi.decode()` or `abi.tryDecode`

Hi,

I am referencing the conversation #10317 .

It would be nice to have a way to catch errors thrown during `abi.decode` operations.

Quoting @chriseth:
> Instead of try/catch we should maybe rather have abi.tryDecode? The problem here is how to return the data in the two cases

Also `try catch` might be useful for functions other than `abi.decode` but I will first need to find concrete examples and will report them here in this issue.

-----

Preliminary implementation: https://github.com/ethereum/solidity/pull/10883

Start by reading the linked conversation #10317 and the preliminary implementation in pull request #10883. The issue needs an agreed direction for catching abi.decode errors and for returning data in both cases; done means the chosen behavior is implemented and validated.

Written by the indexing model from the issue text.