【stride】 fix set_value stride_copy condition (#74341)

* update copy and set_value support stride input/output * fix dsttensor is nullptr * fix dst holder is nullptr * delete sted::cout * fix set_value

Author: xiaoguoguo626807

paddle/fluid/pybind/eager_method.cc

@@ -1414,7 +1414,8 @@ static PyObject* tensor_method_set_underline_tensor(TensorObject* self,
  if (self->tensor.is_dense_tensor()) {
  auto* dst_tensor =
  static_cast<phi::DenseTensor*>(self->tensor.impl().get());
- if (!dst_tensor->meta().is_contiguous() ||
+ if (self->tensor.has_allocation() &&
+ !dst_tensor->meta().is_contiguous() ||
  !src_tensor->meta().is_contiguous()) {
  VLOG(8) << "set_tensor() method , src or dst tensor is not contiguous";
  if (!FLAGS_use_stride_kernel) {