message: Small fix to prevent a crash if the delegate has not implemented FreeBufferHandle.
diff: @@ -125,7 +125,8 @@ Interpreter::~Interpreter() {
  for (int i = 0; i < context_.tensors_size; i++) {
  TfLiteTensor* tensor = &context_.tensors[i];
  - if (tensor->buffer_handle != kTfLiteNullBufferHandle) {
  + if (tensor->buffer_handle != kTfLiteNullBufferHandle &&
  + tensor->delegate->FreeBufferHandle != nullptr) {
  tensor->delegate->FreeBufferHandle(tensor->delegate,
  &tensor->buffer_handle);
  }
  