bpo-40137: Add pycore_moduleobject.h internal header (GH-25507)

Add pycore_moduleobject.h internal header file with static inline
functions to access module members:

* _PyModule_GetDict()
* _PyModule_GetDef()
* _PyModule_GetState()

These functions don't check at runtime if their argument has a valid
type and can be inlined even if Python is not built with LTO.

_PyType_GetModuleByDef() uses _PyModule_GetDef().

Replace PyModule_GetState() with _PyModule_GetState() in the
extension modules, considered as performance sensitive:

* _abc
* _functools
* _operator
* _pickle
* _queue
* _random
* _sre
* _struct
* _thread
* _winapi
* array
* posix

The following extensions are now built with the Py_BUILD_CORE_MODULE
macro defined, to be able to use the internal pycore_moduleobject.h
header: _abc, array, _operator, _queue, _sre, _struct.

1 files changed, 2 insertions, 1 deletions

diff --git a/Modules/_sre.c b/Modules/_sre.c
index 57faf7b..d4bfff6 100644
--- a/Modules/_sre.c
+++ b/Modules/_sre.c
@@ -42,6 +42,7 @@ static const char copyright[] =
 
 #include "Python.h"
 #include "pycore_long.h"          // _PyLong_GetZero()
+#include "pycore_moduleobject.h"  // _PyModule_GetState()
 #include "structmember.h"         // PyMemberDef
 
 #include "sre.h"
@@ -258,7 +259,7 @@ typedef struct {
 static _sremodulestate *
 get_sre_module_state(PyObject *m)
 {
-    _sremodulestate *state = (_sremodulestate *)PyModule_GetState(m);
+    _sremodulestate *state = (_sremodulestate *)_PyModule_GetState(m);
     assert(state);
     return state;
 }