Add missing files to CMakeLists.txt

Author: grynspan

Sources/Overlays/_Testing_WinSDK/CMakeLists.txt

@@ -16,6 +16,9 @@ if (CMAKE_SYSTEM_NAME STREQUAL "Windows")
     Attachments/HICON+AttachableAsIWICBitmapSource.swift
     Attachments/IWICBitmapSource+AttachableAsIWICBitmapSource.swift
     Attachments/UnsafeMutablePointer+AttachableAsIWICBitmapSource.swift
+    Support/Additions/GUIDAdditions.swift
+    Support/Additions/IPropertyBag2Additions.swift
+    Support/Additions/IWICImagingFactoryAdditions.swift
     ReexportTesting.swift)
 
   target_link_libraries(_Testing_WinSDK PUBLIC
@@ -26,4 +29,4 @@ if (CMAKE_SYSTEM_NAME STREQUAL "Windows")
     -emit-module-interface -emit-module-interface-path $<TARGET_PROPERTY:_Testing_WinSDK,Swift_MODULE_DIRECTORY>/_Testing_WinSDK.swiftinterface)
 
   _swift_testing_install_target(_Testing_WinSDK)
-endif()
+endif()