pythongh-111968: Unify naming scheme for freelist (pythongh-113919)

Author: corona10

Include/internal/pycore_freelist.h

@@ -36,7 +36,7 @@ struct _Py_float_state {
 
 typedef struct _Py_freelist_state {
     struct _Py_float_state float_state;
-    struct _Py_list_state list;
+    struct _Py_list_state list_state;
 } _PyFreeListState;
 
 #ifdef __cplusplus

Objects/listobject.c

@@ -26,7 +26,7 @@ get_list_state(void)
 {
     _PyFreeListState *state = _PyFreeListState_GET();
     assert(state != NULL);
-    return &state->list;
+    return &state->list_state;
 }
 #endif
 
@@ -124,7 +124,7 @@ void
 _PyList_ClearFreeList(_PyFreeListState *freelist_state, int is_finalization)
 {
 #if PyList_MAXFREELIST > 0
-    struct _Py_list_state *state = &freelist_state->list;
+    struct _Py_list_state *state = &freelist_state->list_state;
     while (state->numfree > 0) {
         PyListObject *op = state->free_list[--state->numfree];
         assert(PyList_CheckExact(op));