syscall: mark WSAECONNABORTED, WSAECONNRESET as temporary network errors

Windows was missed in https://golang.org/cl/141600043.

Fixes #6163 (again).

Change-Id: I09076be80fb6b2148d3e5618461ebaa79f27d5b3
Reviewed-on: https://go-review.googlesource.com/39490Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>

src/syscall/syscall_windows.go

@@ -110,7 +110,7 @@ func (e Errno) Error() string {
 }
 
 func (e Errno) Temporary() bool {
-	return e == EINTR || e == EMFILE || e.Timeout()
+	return e == EINTR || e == EMFILE || e == WSAECONNABORTED || e == WSAECONNRESET || e.Timeout()
 }
 
 func (e Errno) Timeout() bool {

src/syscall/ztypes_windows.go

@@ -27,6 +27,7 @@ const (
 	ERROR_NOT_FOUND           Errno = 1168
 	ERROR_PRIVILEGE_NOT_HELD  Errno = 1314
 	WSAEACCES                 Errno = 10013
+	WSAECONNABORTED           Errno = 10053
 	WSAECONNRESET             Errno = 10054
 )