Include the destination in error message when copying/linking fails

[ankddev]

The problem

While working on #5378, I've noticed few TODOs about the need to add destination to error message, when copying or symlinking fails. It seems very useful for me.

Possible solution

1. Add new optional field to error
2. Update code for coversion to diagnostic
3. Update all usages to include it

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If it's desired feature, I will work on this!