Fix compilation errors in C API debug build

Author: fangerer

graalpython/com.oracle.graal.python.cext/include/internal/pycore_pyerrors.h

@@ -26,7 +26,7 @@ static inline PyObject* _PyErr_Occurred(PyThreadState *tstate)
 {
     assert(tstate != NULL);
     // GraalPy change
-    assert(tstate->curexc_type == _PyTruffleErr_Occurred(tstate));
+    assert(tstate->curexc_type == Graal_PyTruffleErr_Occurred(tstate));
     return tstate->curexc_type;
 }
 

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

@@ -116,7 +116,7 @@ _Py_CheckSlotResult(PyObject *obj, const char *slot_name, int success)
 /* --- Core PyObject call functions ------------------------------- */
 
 // GraalPy addition
-inline int is_single_arg(const char* fmt) {
+static inline int is_single_arg(const char* fmt) {
     if (fmt[0] == 0) {
         return 0;
     }

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

@@ -140,13 +140,13 @@ skip_signature(const char *doc)
     return NULL;
 }
 
-#if 0 // GraalPy change
 int
 _PyType_CheckConsistency(PyTypeObject *type)
 {
 #define CHECK(expr) \
     do { if (!(expr)) { _PyObject_ASSERT_FAILED_MSG((PyObject *)type, Py_STRINGIFY(expr)); } } while (0)
 
+#if 0 // GraalPy change
     CHECK(!_PyObject_IsFreed((PyObject *)type));
 
     if (!(type->tp_flags & Py_TPFLAGS_READY)) {
@@ -170,11 +170,11 @@ _PyType_CheckConsistency(PyTypeObject *type)
         CHECK(type->tp_new == NULL);
         CHECK(PyDict_Contains(type->tp_dict, &_Py_ID(__new__)) == 0);
     }
+#endif // GraalPy change
 
     return 1;
 #undef CHECK
 }
-#endif // GraalPy change
 
 static const char *
 _PyType_DocWithoutSignature(const char *name, const char *internal_doc)
@@ -3654,7 +3654,7 @@ PyType_FromModuleAndSpec(PyObject *module, PyType_Spec *spec, PyObject *bases)
         }
     }
 
-    // assert(_PyType_CheckConsistency(type));
+    assert(_PyType_CheckConsistency(type));
     return (PyObject*)res;
 
  fail:
@@ -6500,7 +6500,7 @@ int
 PyType_Ready(PyTypeObject *type)
 {
     if (type->tp_flags & Py_TPFLAGS_READY) {
-        // assert(_PyType_CheckConsistency(type));
+        assert(_PyType_CheckConsistency(type));
         return 0;
     }
     _PyObject_ASSERT((PyObject *)type,