+ <Compile Include="..\..\..\external\corefx\src\System.Collections\src\System\Collections\Generic\BitHelper.cs" />\r
+ <Compile Include="..\..\..\external\corefx\src\System.Collections\src\System\Collections\Generic\HashSet.cs" />\r
+ <Compile Include="..\..\..\external\corefx\src\System.Collections\src\System\Collections\Generic\HashSetEqualityComparer.cs" />\r
+ <Compile Include="..\..\..\external\corefx\src\System.Collections\src\System\Collections\Generic\ICollectionDebugView.cs" />\r