Use indexed-traversable for type-checking list literals #2423
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itraverse_ for Seq is implemented via Data.Sequence.foldMapWithIndex and manages to perform the traversal in one pass. The previous implementation involved first mapping over the Seq and then reducing the resulting Seq. indexed-traversable is used in aeson, so it's already a transitive dependency.
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itraverse_ for Seq is implemented via Data.Sequence.foldMapWithIndex
and manages to perform the traversal in one pass.
The previous implementation involved first mapping over the Seq and
then reducing the resulting Seq.
indexed-traversable is used in aeson, so it's already a transitive
dependency.