Implement _Py_IsFinalizing

Author: msimacek

graalpython/com.oracle.graal.python.cext/src/pylifecycle.c

@@ -44,6 +44,12 @@ int Py_IsInitialized(void) {
     return !graalpy_finalizing;
 }
 
+int
+_Py_IsFinalizing(void)
+{
+    return graalpy_finalizing;
+}
+
 void _Py_NO_RETURN  _Py_FatalErrorFunc(const char *func, const char *msg) {
 	GraalPyTruffle_FatalErrorFunc(func, msg, -1);
 	/* If the above upcall returns, then we just fall through to the 'abort' call. */

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/capi/CApiFunction.java

@@ -618,6 +618,7 @@ public final class CApiFunction {
     @CApiBuiltin(name = "_Py_HashPointer", ret = Py_hash_t, args = {CONST_VOID_PTR}, call = CImpl)
     @CApiBuiltin(name = "_Py_HashPointerRaw", ret = Py_hash_t, args = {CONST_VOID_PTR}, call = CImpl)
     @CApiBuiltin(name = "_Py_IncRef", ret = Void, args = {PyObject}, call = CImpl)
+    @CApiBuiltin(name = "_Py_IsFinalizing", ret = Int, args = {}, call = CImpl)
     @CApiBuiltin(name = "_Py_NewReference", ret = Void, args = {PyObject}, call = CImpl)
     @CApiBuiltin(name = "_Py_VaBuildStack", ret = PyObjectPtr, args = {PyObjectPtr, Py_ssize_t, ConstCharPtrAsTruffleString, VA_LIST, PY_SSIZE_T_PTR}, call = CImpl)
     @CApiBuiltin(name = "_Py_VaBuildStack_SizeT", ret = PyObjectPtr, args = {PyObjectPtr, Py_ssize_t, ConstCharPtrAsTruffleString, VA_LIST, PY_SSIZE_T_PTR}, call = CImpl)
@@ -1215,7 +1216,6 @@ public final class CApiFunction {
     @CApiBuiltin(name = "_Py_GetConfig", ret = CONST_PYCONFIG_PTR, args = {}, call = NotImplemented)
     @CApiBuiltin(name = "_Py_InitializeMain", ret = PYSTATUS, args = {}, call = NotImplemented)
     @CApiBuiltin(name = "_Py_IsCoreInitialized", ret = Int, args = {}, call = NotImplemented)
-    @CApiBuiltin(name = "_Py_IsFinalizing", ret = Int, args = {}, call = NotImplemented)
     @CApiBuiltin(name = "_Py_LegacyLocaleDetected", ret = Int, args = {Int}, call = NotImplemented)
     @CApiBuiltin(name = "_Py_NewInterpreter", ret = PyThreadState, args = {Int}, call = NotImplemented)
     @CApiBuiltin(name = "_Py_RestoreSignals", ret = Void, args = {}, call = NotImplemented)