bpo-42519: Replace PyObject_MALLOC() with PyObject_Malloc() (GH-23587)

No longer use deprecated aliases to functions:

* Replace PyObject_MALLOC() with PyObject_Malloc()
* Replace PyObject_REALLOC() with PyObject_Realloc()
* Replace PyObject_FREE() with PyObject_Free()
* Replace PyObject_Del() with PyObject_Free()
* Replace PyObject_DEL() with PyObject_Free()
diff --git a/Objects/bytesobject.c b/Objects/bytesobject.c
index bb84409..13216b9 100644
--- a/Objects/bytesobject.c
+++ b/Objects/bytesobject.c
@@ -198,7 +198,7 @@ PyBytes_FromString(const char *str)
     }
 
     /* Inline PyObject_NewVar */
-    op = (PyBytesObject *)PyObject_MALLOC(PyBytesObject_SIZE + size);
+    op = (PyBytesObject *)PyObject_Malloc(PyBytesObject_SIZE + size);
     if (op == NULL) {
         return PyErr_NoMemory();
     }
@@ -1475,7 +1475,7 @@ bytes_repeat(PyBytesObject *a, Py_ssize_t n)
             "repeated bytes are too long");
         return NULL;
     }
-    op = (PyBytesObject *)PyObject_MALLOC(PyBytesObject_SIZE + nbytes);
+    op = (PyBytesObject *)PyObject_Malloc(PyBytesObject_SIZE + nbytes);
     if (op == NULL) {
         return PyErr_NoMemory();
     }
@@ -3054,9 +3054,9 @@ _PyBytes_Resize(PyObject **pv, Py_ssize_t newsize)
     _Py_ForgetReference(v);
 #endif
     *pv = (PyObject *)
-        PyObject_REALLOC(v, PyBytesObject_SIZE + newsize);
+        PyObject_Realloc(v, PyBytesObject_SIZE + newsize);
     if (*pv == NULL) {
-        PyObject_Del(v);
+        PyObject_Free(v);
         PyErr_NoMemory();
         return -1;
     }
diff --git a/Objects/capsule.c b/Objects/capsule.c
index a2ff642..800a6c4 100644
--- a/Objects/capsule.c
+++ b/Objects/capsule.c
@@ -260,7 +260,7 @@ capsule_dealloc(PyObject *o)
     if (capsule->destructor) {
         capsule->destructor(o);
     }
-    PyObject_DEL(o);
+    PyObject_Free(o);
 }
 
 
diff --git a/Objects/codeobject.c b/Objects/codeobject.c
index 0257295..0b0b8f9 100644
--- a/Objects/codeobject.c
+++ b/Objects/codeobject.c
@@ -669,7 +669,7 @@ code_dealloc(PyCodeObject *co)
         PyObject_GC_Del(co->co_zombieframe);
     if (co->co_weakreflist != NULL)
         PyObject_ClearWeakRefs((PyObject*)co);
-    PyObject_DEL(co);
+    PyObject_Free(co);
 }
 
 static PyObject *
diff --git a/Objects/complexobject.c b/Objects/complexobject.c
index a481d9a..a65ebdf 100644
--- a/Objects/complexobject.c
+++ b/Objects/complexobject.c
@@ -233,7 +233,7 @@ PyObject *
 PyComplex_FromCComplex(Py_complex cval)
 {
     /* Inline PyObject_New */
-    PyComplexObject *op = PyObject_MALLOC(sizeof(PyComplexObject));
+    PyComplexObject *op = PyObject_Malloc(sizeof(PyComplexObject));
     if (op == NULL) {
         return PyErr_NoMemory();
     }
diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index ee1a9d1..7a37313 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -269,7 +269,7 @@ _PyDict_ClearFreeList(PyThreadState *tstate)
         PyObject_GC_Del(op);
     }
     while (state->keys_numfree) {
-        PyObject_FREE(state->keys_free_list[--state->keys_numfree]);
+        PyObject_Free(state->keys_free_list[--state->keys_numfree]);
     }
 }
 
@@ -597,7 +597,7 @@ new_keys_object(Py_ssize_t size)
     }
     else
     {
-        dk = PyObject_MALLOC(sizeof(PyDictKeysObject)
+        dk = PyObject_Malloc(sizeof(PyDictKeysObject)
                              + es * size
                              + sizeof(PyDictKeyEntry) * usable);
         if (dk == NULL) {
@@ -636,7 +636,7 @@ free_keys_object(PyDictKeysObject *keys)
         state->keys_free_list[state->keys_numfree++] = keys;
         return;
     }
-    PyObject_FREE(keys);
+    PyObject_Free(keys);
 }
 
 #define new_values(size) PyMem_NEW(PyObject *, size)
@@ -1303,7 +1303,7 @@ dictresize(PyDictObject *mp, Py_ssize_t newsize)
             state->keys_free_list[state->keys_numfree++] = oldkeys;
         }
         else {
-            PyObject_FREE(oldkeys);
+            PyObject_Free(oldkeys);
         }
     }
 
diff --git a/Objects/floatobject.c b/Objects/floatobject.c
index 1550b2e..34fb57a 100644
--- a/Objects/floatobject.c
+++ b/Objects/floatobject.c
@@ -237,7 +237,7 @@ float_dealloc(PyFloatObject *op)
         assert(state->numfree != -1);
 #endif
         if (state->numfree >= PyFloat_MAXFREELIST)  {
-            PyObject_FREE(op);
+            PyObject_Free(op);
             return;
         }
         state->numfree++;
@@ -2032,7 +2032,7 @@ _PyFloat_ClearFreeList(PyThreadState *tstate)
     PyFloatObject *f = state->free_list;
     while (f != NULL) {
         PyFloatObject *next = (PyFloatObject*) Py_TYPE(f);
-        PyObject_FREE(f);
+        PyObject_Free(f);
         f = next;
     }
     state->free_list = NULL;
diff --git a/Objects/longobject.c b/Objects/longobject.c
index e0d6410..240e92a 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -131,7 +131,7 @@ _PyLong_New(Py_ssize_t size)
                         "too many digits in integer");
         return NULL;
     }
-    result = PyObject_MALLOC(offsetof(PyLongObject, ob_digit) +
+    result = PyObject_Malloc(offsetof(PyLongObject, ob_digit) +
                              size*sizeof(digit));
     if (!result) {
         PyErr_NoMemory();
diff --git a/Objects/object.c b/Objects/object.c
index 2e8717f..0a8621b 100644
--- a/Objects/object.c
+++ b/Objects/object.c
@@ -161,7 +161,7 @@ PyObject_InitVar(PyVarObject *op, PyTypeObject *tp, Py_ssize_t size)
 PyObject *
 _PyObject_New(PyTypeObject *tp)
 {
-    PyObject *op = (PyObject *) PyObject_MALLOC(_PyObject_SIZE(tp));
+    PyObject *op = (PyObject *) PyObject_Malloc(_PyObject_SIZE(tp));
     if (op == NULL) {
         return PyErr_NoMemory();
     }
@@ -174,7 +174,7 @@ _PyObject_NewVar(PyTypeObject *tp, Py_ssize_t nitems)
 {
     PyVarObject *op;
     const size_t size = _PyObject_VAR_SIZE(tp, nitems);
-    op = (PyVarObject *) PyObject_MALLOC(size);
+    op = (PyVarObject *) PyObject_Malloc(size);
     if (op == NULL) {
         return (PyVarObject *)PyErr_NoMemory();
     }
diff --git a/Objects/odictobject.c b/Objects/odictobject.c
index 83b326b..4eb15f9 100644
--- a/Objects/odictobject.c
+++ b/Objects/odictobject.c
@@ -459,7 +459,7 @@ Potential Optimizations
 - implement a fuller MutableMapping API in C?
 - move the MutableMapping implementation to abstract.c?
 - optimize mutablemapping_update
-- use PyObject_MALLOC (small object allocator) for odict nodes?
+- use PyObject_Malloc (small object allocator) for odict nodes?
 - support subclasses better (e.g. in odict_richcompare)
 
 */
diff --git a/Objects/rangeobject.c b/Objects/rangeobject.c
index 787d113..530426c 100644
--- a/Objects/rangeobject.c
+++ b/Objects/rangeobject.c
@@ -171,7 +171,7 @@ range_dealloc(rangeobject *r)
     Py_DECREF(r->stop);
     Py_DECREF(r->step);
     Py_DECREF(r->length);
-    PyObject_Del(r);
+    PyObject_Free(r);
 }
 
 /* Return number of items in range (lo, hi, step) as a PyLong object,
@@ -1021,7 +1021,7 @@ longrangeiter_dealloc(longrangeiterobject *r)
     Py_XDECREF(r->start);
     Py_XDECREF(r->step);
     Py_XDECREF(r->len);
-    PyObject_Del(r);
+    PyObject_Free(r);
 }
 
 static PyObject *
diff --git a/Objects/stringlib/unicode_format.h b/Objects/stringlib/unicode_format.h
index b526ad2..7152ec6 100644
--- a/Objects/stringlib/unicode_format.h
+++ b/Objects/stringlib/unicode_format.h
@@ -983,7 +983,7 @@ static void
 formatteriter_dealloc(formatteriterobject *it)
 {
     Py_XDECREF(it->str);
-    PyObject_FREE(it);
+    PyObject_Free(it);
 }
 
 /* returns a tuple:
@@ -1147,7 +1147,7 @@ static void
 fieldnameiter_dealloc(fieldnameiterobject *it)
 {
     Py_XDECREF(it->str);
-    PyObject_FREE(it);
+    PyObject_Free(it);
 }
 
 /* returns a tuple:
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index fbadd31..83bc877 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -1059,7 +1059,7 @@ PyType_GenericAlloc(PyTypeObject *type, Py_ssize_t nitems)
         obj = _PyObject_GC_Malloc(size);
     }
     else {
-        obj = (PyObject *)PyObject_MALLOC(size);
+        obj = (PyObject *)PyObject_Malloc(size);
     }
 
     if (obj == NULL) {
@@ -2707,7 +2707,7 @@ type_new(PyTypeObject *metatype, PyObject *args, PyObject *kwds)
                 goto error;
             /* Silently truncate the docstring if it contains null bytes. */
             len = strlen(doc_str);
-            tp_doc = (char *)PyObject_MALLOC(len + 1);
+            tp_doc = (char *)PyObject_Malloc(len + 1);
             if (tp_doc == NULL) {
                 PyErr_NoMemory();
                 goto error;
@@ -3047,7 +3047,7 @@ PyType_FromModuleAndSpec(PyObject *module, PyType_Spec *spec, PyObject *bases)
                 continue;
             }
             size_t len = strlen(slot->pfunc)+1;
-            char *tp_doc = PyObject_MALLOC(len);
+            char *tp_doc = PyObject_Malloc(len);
             if (tp_doc == NULL) {
                 type->tp_doc = NULL;
                 PyErr_NoMemory();
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index ba6d07a..f6473c0 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -1061,7 +1061,7 @@ resize_compact(PyObject *unicode, Py_ssize_t length)
     new_size = (struct_size + (length + 1) * char_size);
 
     if (_PyUnicode_HAS_UTF8_MEMORY(unicode)) {
-        PyObject_DEL(_PyUnicode_UTF8(unicode));
+        PyObject_Free(_PyUnicode_UTF8(unicode));
         _PyUnicode_UTF8(unicode) = NULL;
         _PyUnicode_UTF8_LENGTH(unicode) = 0;
     }
@@ -1072,7 +1072,7 @@ resize_compact(PyObject *unicode, Py_ssize_t length)
     _Py_ForgetReference(unicode);
 #endif
 
-    new_unicode = (PyObject *)PyObject_REALLOC(unicode, new_size);
+    new_unicode = (PyObject *)PyObject_Realloc(unicode, new_size);
     if (new_unicode == NULL) {
         _Py_NewReference(unicode);
         PyErr_NoMemory();
@@ -1088,7 +1088,7 @@ resize_compact(PyObject *unicode, Py_ssize_t length)
             _PyUnicode_WSTR_LENGTH(unicode) = length;
     }
     else if (_PyUnicode_HAS_WSTR_MEMORY(unicode)) {
-        PyObject_DEL(_PyUnicode_WSTR(unicode));
+        PyObject_Free(_PyUnicode_WSTR(unicode));
         _PyUnicode_WSTR(unicode) = NULL;
         if (!PyUnicode_IS_ASCII(unicode))
             _PyUnicode_WSTR_LENGTH(unicode) = 0;
@@ -1131,12 +1131,12 @@ resize_inplace(PyObject *unicode, Py_ssize_t length)
 
         if (!share_utf8 && _PyUnicode_HAS_UTF8_MEMORY(unicode))
         {
-            PyObject_DEL(_PyUnicode_UTF8(unicode));
+            PyObject_Free(_PyUnicode_UTF8(unicode));
             _PyUnicode_UTF8(unicode) = NULL;
             _PyUnicode_UTF8_LENGTH(unicode) = 0;
         }
 
-        data = (PyObject *)PyObject_REALLOC(data, new_size);
+        data = (PyObject *)PyObject_Realloc(data, new_size);
         if (data == NULL) {
             PyErr_NoMemory();
             return -1;
@@ -1169,7 +1169,7 @@ resize_inplace(PyObject *unicode, Py_ssize_t length)
     }
     new_size = sizeof(wchar_t) * (length + 1);
     wstr =  _PyUnicode_WSTR(unicode);
-    wstr = PyObject_REALLOC(wstr, new_size);
+    wstr = PyObject_Realloc(wstr, new_size);
     if (!wstr) {
         PyErr_NoMemory();
         return -1;
@@ -1259,7 +1259,7 @@ _PyUnicode_New(Py_ssize_t length)
     _PyUnicode_UTF8(unicode) = NULL;
     _PyUnicode_UTF8_LENGTH(unicode) = 0;
 
-    _PyUnicode_WSTR(unicode) = (Py_UNICODE*) PyObject_MALLOC(new_size);
+    _PyUnicode_WSTR(unicode) = (Py_UNICODE*) PyObject_Malloc(new_size);
     if (!_PyUnicode_WSTR(unicode)) {
         Py_DECREF(unicode);
         PyErr_NoMemory();
@@ -1456,7 +1456,7 @@ PyUnicode_New(Py_ssize_t size, Py_UCS4 maxchar)
      * PyObject_New() so we are able to allocate space for the object and
      * it's data buffer.
      */
-    obj = (PyObject *) PyObject_MALLOC(struct_size + (size + 1) * char_size);
+    obj = (PyObject *) PyObject_Malloc(struct_size + (size + 1) * char_size);
     if (obj == NULL) {
         return PyErr_NoMemory();
     }
@@ -1838,7 +1838,7 @@ _PyUnicode_Ready(PyObject *unicode)
         return -1;
 
     if (maxchar < 256) {
-        _PyUnicode_DATA_ANY(unicode) = PyObject_MALLOC(_PyUnicode_WSTR_LENGTH(unicode) + 1);
+        _PyUnicode_DATA_ANY(unicode) = PyObject_Malloc(_PyUnicode_WSTR_LENGTH(unicode) + 1);
         if (!_PyUnicode_DATA_ANY(unicode)) {
             PyErr_NoMemory();
             return -1;
@@ -1859,7 +1859,7 @@ _PyUnicode_Ready(PyObject *unicode)
             _PyUnicode_UTF8(unicode) = NULL;
             _PyUnicode_UTF8_LENGTH(unicode) = 0;
         }
-        PyObject_FREE(_PyUnicode_WSTR(unicode));
+        PyObject_Free(_PyUnicode_WSTR(unicode));
         _PyUnicode_WSTR(unicode) = NULL;
         _PyUnicode_WSTR_LENGTH(unicode) = 0;
     }
@@ -1879,7 +1879,7 @@ _PyUnicode_Ready(PyObject *unicode)
         _PyUnicode_UTF8_LENGTH(unicode) = 0;
 #else
         /* sizeof(wchar_t) == 4 */
-        _PyUnicode_DATA_ANY(unicode) = PyObject_MALLOC(
+        _PyUnicode_DATA_ANY(unicode) = PyObject_Malloc(
             2 * (_PyUnicode_WSTR_LENGTH(unicode) + 1));
         if (!_PyUnicode_DATA_ANY(unicode)) {
             PyErr_NoMemory();
@@ -1893,7 +1893,7 @@ _PyUnicode_Ready(PyObject *unicode)
         _PyUnicode_STATE(unicode).kind = PyUnicode_2BYTE_KIND;
         _PyUnicode_UTF8(unicode) = NULL;
         _PyUnicode_UTF8_LENGTH(unicode) = 0;
-        PyObject_FREE(_PyUnicode_WSTR(unicode));
+        PyObject_Free(_PyUnicode_WSTR(unicode));
         _PyUnicode_WSTR(unicode) = NULL;
         _PyUnicode_WSTR_LENGTH(unicode) = 0;
 #endif
@@ -1908,7 +1908,7 @@ _PyUnicode_Ready(PyObject *unicode)
             PyErr_NoMemory();
             return -1;
         }
-        _PyUnicode_DATA_ANY(unicode) = PyObject_MALLOC(4 * (length_wo_surrogates + 1));
+        _PyUnicode_DATA_ANY(unicode) = PyObject_Malloc(4 * (length_wo_surrogates + 1));
         if (!_PyUnicode_DATA_ANY(unicode)) {
             PyErr_NoMemory();
             return -1;
@@ -1920,7 +1920,7 @@ _PyUnicode_Ready(PyObject *unicode)
         /* unicode_convert_wchar_to_ucs4() requires a ready string */
         _PyUnicode_STATE(unicode).ready = 1;
         unicode_convert_wchar_to_ucs4(_PyUnicode_WSTR(unicode), end, unicode);
-        PyObject_FREE(_PyUnicode_WSTR(unicode));
+        PyObject_Free(_PyUnicode_WSTR(unicode));
         _PyUnicode_WSTR(unicode) = NULL;
         _PyUnicode_WSTR_LENGTH(unicode) = 0;
 #else
@@ -1973,13 +1973,13 @@ unicode_dealloc(PyObject *unicode)
     }
 
     if (_PyUnicode_HAS_WSTR_MEMORY(unicode)) {
-        PyObject_DEL(_PyUnicode_WSTR(unicode));
+        PyObject_Free(_PyUnicode_WSTR(unicode));
     }
     if (_PyUnicode_HAS_UTF8_MEMORY(unicode)) {
-        PyObject_DEL(_PyUnicode_UTF8(unicode));
+        PyObject_Free(_PyUnicode_UTF8(unicode));
     }
     if (!PyUnicode_IS_COMPACT(unicode) && _PyUnicode_DATA_ANY(unicode)) {
-        PyObject_DEL(_PyUnicode_DATA_ANY(unicode));
+        PyObject_Free(_PyUnicode_DATA_ANY(unicode));
     }
 
     Py_TYPE(unicode)->tp_free(unicode);
@@ -4199,7 +4199,7 @@ PyUnicode_AsUnicodeAndSize(PyObject *unicode, Py_ssize_t *size)
             PyErr_NoMemory();
             return NULL;
         }
-        w = (wchar_t *) PyObject_MALLOC(sizeof(wchar_t) * (wlen + 1));
+        w = (wchar_t *) PyObject_Malloc(sizeof(wchar_t) * (wlen + 1));
         if (w == NULL) {
             PyErr_NoMemory();
             return NULL;
@@ -5627,7 +5627,7 @@ unicode_fill_utf8(PyObject *unicode)
                     PyBytes_AS_STRING(writer.buffer);
     Py_ssize_t len = end - start;
 
-    char *cache = PyObject_MALLOC(len + 1);
+    char *cache = PyObject_Malloc(len + 1);
     if (cache == NULL) {
         _PyBytesWriter_Dealloc(&writer);
         PyErr_NoMemory();
@@ -8544,7 +8544,7 @@ PyUnicode_BuildEncodingMap(PyObject* string)
     }
 
     /* Create a three-level trie */
-    result = PyObject_MALLOC(sizeof(struct encoding_map) +
+    result = PyObject_Malloc(sizeof(struct encoding_map) +
                              16*count2 + 128*count3 - 1);
     if (!result) {
         return PyErr_NoMemory();
@@ -15567,7 +15567,7 @@ unicode_subtype_new(PyTypeObject *type, PyObject *unicode)
         PyErr_NoMemory();
         goto onError;
     }
-    data = PyObject_MALLOC((length + 1) * char_size);
+    data = PyObject_Malloc((length + 1) * char_size);
     if (data == NULL) {
         PyErr_NoMemory();
         goto onError;