gh-94673: Add _PyStaticType_InitBuiltin() (#95152)

This is the first of several precursors to storing tp_subclasses (and tp_weaklist) on the interpreter state for static builtin types.

We do the following:

* add `_PyStaticType_InitBuiltin()`
* add `_Py_TPFLAGS_STATIC_BUILTIN`
* set it on all static builtin types in `_PyStaticType_InitBuiltin()`
* shuffle some code around to be able to use _PyStaticType_InitBuiltin()
    * rename `_PyStructSequence_InitType()` to `_PyStructSequence_InitBuiltinWithFlags()`
    * add `_PyStructSequence_InitBuiltin()`.

1 files changed, 2 insertions, 2 deletions

diff --git a/Python/errors.c b/Python/errors.c
index b6b5d9b..2aa748c 100644
--- a/Python/errors.c
+++ b/Python/errors.c
@@ -1229,8 +1229,8 @@ _PyErr_InitTypes(PyInterpreterState *interp)
     }
 
     if (UnraisableHookArgsType.tp_name == NULL) {
-        if (PyStructSequence_InitType2(&UnraisableHookArgsType,
-                                       &UnraisableHookArgs_desc) < 0) {
+        if (_PyStructSequence_InitBuiltin(&UnraisableHookArgsType,
+                                          &UnraisableHookArgs_desc) < 0) {
             return _PyStatus_ERR("failed to initialize UnraisableHookArgs type");
         }
     }