Here is a list of all enums with links to the files they belong to:

• CountType : ImmutableHashSet.cs
• KeyCollisionBehavior : ImmutableDictionary.cs
• NodeColor : RBTree.cs
• OperationResult : ImmutableDictionary.cs, ImmutableHashSet.cs
• Position : ImmutableDictionary.cs, ImmutableHashSet.cs
• ScopeFlags : CompilerScopeManager.cs
• SequenceType : ReadOnlySequence.cs