[Core] Accumulate errors in blueprint.WiringSpec

[vaastav]

In GitLab by @JonathanMace on Sep 20, 2023, 22:42

Some wiring spec methods and convenience methods might return errors, but it is tedious and verbose to expect a wiring spec to check error return values for all wiring spec calls.

The golang suggested alternative approach can be used here; we can accumulate errors in the blueprint.WiringSpec. Then to do error checking, the wiring spec can provide a method Err() to return any accumulated error(s). For wiring specs, this means they can do error checking, but without verbose error checking.

[vaastav]

In GitLab by @JonathanMace on Sep 21, 2023, 24:28

Implemented by #11