IterableOf, MapEntry and MapEnvelope should use HashCode instead of own hash code algorithm

[fabriciofx]

IterableOf, MapEntry and MapEnvelope (or MapOf if #1384 has been done) should use HashCode instead of own hash code. So let's refactor them to use HashCode.

[victornoel]

@fabriciofx that seems a good idea. Can you just edit the description to say:

IterableOf, MapEntry and MapEnvelope (or MapOf if #1384 has been done)...

[fabriciofx]

@victornoel is it better now?

[victornoel]

@0crat in

[victornoel]

@fabriciofx thanks :)

[fabriciofx]

@victornoel welcome!

[victornoel]

@0crat status

[0crat]

@0crat status (here)

@victornoel This is what I know about this job in C63314D6Z, as in §32:

• The job #1440 is in scope for 9mon
• The role is DEV
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