bpo-33407: Implement Py_DEPRECATED() on MSVC (GH-8980)

diff --git a/Include/pythread.h b/Include/pythread.h
index 40f12d2..c0f1eb9 100644
--- a/Include/pythread.h
+++ b/Include/pythread.h
@@ -97,14 +97,15 @@
    platforms, but it is not POSIX-compliant.  Therefore, the new TSS API uses
    opaque data type to represent TSS keys to be compatible (see PEP 539).
 */
-PyAPI_FUNC(int) PyThread_create_key(void) Py_DEPRECATED(3.7);
-PyAPI_FUNC(void) PyThread_delete_key(int key) Py_DEPRECATED(3.7);
-PyAPI_FUNC(int) PyThread_set_key_value(int key, void *value) Py_DEPRECATED(3.7);
-PyAPI_FUNC(void *) PyThread_get_key_value(int key) Py_DEPRECATED(3.7);
-PyAPI_FUNC(void) PyThread_delete_key_value(int key) Py_DEPRECATED(3.7);
+Py_DEPRECATED(3.7) PyAPI_FUNC(int) PyThread_create_key(void);
+Py_DEPRECATED(3.7) PyAPI_FUNC(void) PyThread_delete_key(int key);
+Py_DEPRECATED(3.7) PyAPI_FUNC(int) PyThread_set_key_value(int key,
+                                                          void *value);
+Py_DEPRECATED(3.7) PyAPI_FUNC(void *) PyThread_get_key_value(int key);
+Py_DEPRECATED(3.7) PyAPI_FUNC(void) PyThread_delete_key_value(int key);
 
 /* Cleanup after a fork */
-PyAPI_FUNC(void) PyThread_ReInitTLS(void) Py_DEPRECATED(3.7);
+Py_DEPRECATED(3.7) PyAPI_FUNC(void) PyThread_ReInitTLS(void);
 
 
 #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03070000