Prelude: Map improvements #523
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Use `uninitialized` intrinsic to have "empty" `MapEntry` objects in the `Map`'s `_entries` field, rather than the previous approach of having an array of `MapEntry?` values. This approach adds a bit more logical overhead, but it significantly reduces the amount of allocations when working with `MapEntry` values, and also eliminates the need for `flattenOption`.
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Use
uninitializedintrinsic to have "empty"MapEntryobjects in theMap's_entriesfield, rather than the previous approach of having an array ofMapEntry?values. This approach adds a bit more logical overhead, but it significantly reduces the amount of allocations when working withMapEntryvalues, and also eliminates the need forflattenOption.