tree d6b1db45bcdcce0e665752f104702ea17a7af660
parent 390022b24bc076cb934385936ac7904f045a75ba
author Nate Bosch <nbosch1@gmail.com> 1578346122 -0800
committer GitHub <noreply@github.com> 1578346122 -0800
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Refactor Set.add following !Set.contains (#2295)

The `.add` method returns a boolean indicating whether then value was
not already contained in the set. Find a few places where both are used
unnecessarily and refactor to only call `.add` and use the returned
boolean.