Support infinite edge weights

[szhorvat]

What is the feature or improvement you would like to see?

Since packed arrays can't contain Infinity or Indeterminate, these values are not currently supported in edge weights.

This is a request to implement a workaround to this.

Use cases for the feature

Infinite weights are useful with shortest path calculations.

Built-in functions don't support infinite weights either, so this would be a nice improvement over them.

References

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