Compare productPrefix in synthetic case class canEqual #21606
+32
−2
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Since 2.13, case class
hashCode
mixes in the hash code of theproductPrefix
string. The syntheticequals
method has fallen out of sync in that regard, so two instances can be equal but have different hash codes.This commit changes the synthetic
canEqual
method to also compare theproductPrefix
of the two instances.Scala 3 forward port of scala/scala#10859, for scala/bug#13033.