Richard Newman 19fc7cddf1 [query] Widen known_types correctly in complex or. (#424) r=nalexander ... * Part 1: define ValueTypeSet. We're going to use this instead of `HashSet<ValueType>` so that we can clearly express the empty set and the set of all types, and also to encapsulate a switch to `EnumSet`." * Part 2: use ValueTypeSet. * Part 3: fix type expansion. * Part 4: add a test for type extraction from nested `or`. * Review comments. * Review comments: simplify ValueTypeSet.		2017-04-24 14:15:26 -07:00
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translate.rs	[query] Widen known_types correctly in complex or. (#424) r=nalexander	2017-04-24 14:15:26 -07:00