Revert "remove dep on Win32-extras"

This reverts commit 8b5480c66a.

Yeah, too early for that too

Utility/PID.hs

@@ -13,7 +13,8 @@ module Utility.PID where
 import System.Posix.Types (ProcessID)
 import System.Posix.Process (getProcessID)
 #else
-import System.Win32.Process (ProcessId, getCurrentProcessId)
+import System.Win32.Process (ProcessId)
+import System.Win32.Process.Current (getCurrentProcessId)
 #endif
 
 #ifndef mingw32_HOST_OS

git-annex.cabal

@@ -381,7 +381,8 @@ Executable git-annex
 
   if (os(windows))
     Build-Depends:
-      Win32 (== 2.4.0.0),
+      Win32 (== 2.3.1.1),
+      Win32-extras,
       unix-compat (>= 0.5),
       setenv,
       process (>= 1.4.2.0)

stack-windows.yaml

@@ -18,7 +18,7 @@ packages:
 - '.'
 - location:
     git: https://github.com/joeyh/win32
-    commit: 68067eeff8e019eff64b124b9c0232e94a0e8b30
+    commit: 9250d2b8cadf5a98ffb3f68d933a6257c1b7e23d
   extra-dep: true
 extra-deps:
 - aws-0.17.1