[Merged by Bors] - Add EntityMap::iter()
#6935
Closed
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Objective
There is currently no way to iterate over key/value pairs inside an
EntityMap, which makes the usage of this struct very awkward. I couldn't think of a good reason why theiter()function should not be exposed, considering the interface already exposeskeys()andvalues(), so I made this PR.Solution
Implement
iter()forEntityMapin terms of its inner map type.