move static function. NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318729 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Support/Windows/Path.inc

@@ -418,32 +418,6 @@ static std::error_code rename_internal(HANDLE FromHandle, const Twine &To,
   return std::error_code();
 }
 
-static std::error_code rename_handle(HANDLE Handle, const Twine &To);
-
-std::error_code rename(const Twine &From, const Twine &To) {
-  // Convert to utf-16.
-  SmallVector<wchar_t, 128> WideFrom;
-  if (std::error_code EC = widenPath(From, WideFrom))
-    return EC;
-
-  ScopedFileHandle FromHandle;
-  // Retry this a few times to defeat badly behaved file system scanners.
-  for (unsigned Retry = 0; Retry != 200; ++Retry) {
-    if (Retry != 0)
-      ::Sleep(10);
-    FromHandle =
-        ::CreateFileW(WideFrom.begin(), GENERIC_READ | DELETE,
-                      FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
-                      NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
-    if (FromHandle)
-      break;
-  }
-  if (!FromHandle)
-    return mapWindowsError(GetLastError());
-
-  return rename_handle(FromHandle, To);
-}
-
 static std::error_code rename_handle(HANDLE FromHandle, const Twine &To) {
   SmallVector<wchar_t, 128> WideTo;
   if (std::error_code EC = widenPath(To, WideTo))
@@ -539,6 +513,30 @@ static std::error_code rename_handle(HANDLE FromHandle, const Twine &To) {
   return errc::permission_denied;
 }
 
+std::error_code rename(const Twine &From, const Twine &To) {
+  // Convert to utf-16.
+  SmallVector<wchar_t, 128> WideFrom;
+  if (std::error_code EC = widenPath(From, WideFrom))
+    return EC;
+
+  ScopedFileHandle FromHandle;
+  // Retry this a few times to defeat badly behaved file system scanners.
+  for (unsigned Retry = 0; Retry != 200; ++Retry) {
+    if (Retry != 0)
+      ::Sleep(10);
+    FromHandle =
+        ::CreateFileW(WideFrom.begin(), GENERIC_READ | DELETE,
+                      FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+                      NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+    if (FromHandle)
+      break;
+  }
+  if (!FromHandle)
+    return mapWindowsError(GetLastError());
+
+  return rename_handle(FromHandle, To);
+}
+
 std::error_code resize_file(int FD, uint64_t Size) {
 #ifdef HAVE__CHSIZE_S
   errno_t error = ::_chsize_s(FD, Size);