MethodDescriptor2_new does not check for NULL in _testcapi

[sobolevn]

Bug report

Here:

cpython/Modules/_testcapi/vectorcall.c

Lines 347 to 354 in 8303d32

	static PyObject *
	MethodDescriptor2_new(PyTypeObject* type, PyObject* args, PyObject *kw)
	{
	MethodDescriptor2Object *op = PyObject_New(MethodDescriptor2Object, type);
	op->base.vectorcall = NULL;
	op->vectorcall = MethodDescriptor_vectorcall;
	return (PyObject *)op;
	}

I know that memory errors are very unluckily, but still: why not having a correct code?

Linked PRs

• gh-121791: Check for NULL in MethodDescriptor2_new in _testcapi #121792
• [3.13] gh-121791: Check for NULL in MethodDescriptor2_new in _testcapi (GH-121792) #121839
• [3.12] gh-121791: Check for NULL in MethodDescriptor2_new in _testcapi (GH-121792) #121840