Merge remote-tracking branch 'origin/master' into master-next

Author: swift-ci

stdlib/public/Windows/WinSDK.swift

@@ -46,3 +46,7 @@ public let WS_OVERLAPPEDWINDOW: UINT =
     UINT(WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX)
 public let WS_POPUPWINDOW: UINT =
     UINT(Int32(WS_POPUP) | WS_BORDER | WS_SYSMENU)
+
+// fileapi.h
+public let INVALID_FILE_ATTRIBUTES: DWORD = DWORD(bitPattern: -1)
+