* Add function to disable paddle signal handler

Paddle used google::InstallFaultSignalHandler to handle selected system signals,
mainly for debugging and bug report purposes.

However, this can be conflicted with other python packages whoever captures similar signals.
Such python package involves tvm and more

To resolve this issue, we support a function to disable signal handler

* Remove signal test from WIN32 platform

* Remove redundant return from disable_signal_handler() function

* Add detailed messages to en_doc

* fix flatten infershape; test=develop

* fix flatten infershape; test=develop

 [cherry-pick][Dy2Stat]supplet several interface of static Variable to consistent with dygraph Tensor (#33330) #34401 

As the title

[cherry-pick][Dy2Stat]supplet several interface of static Variable to consistent with dygraph Tensor (#33330)

[Dy2Stat]Support non-tensor type in input_spec

* fix DataLoader memory leak. test=develop

* fix unittest abort. test=develop

* enable test_dataloader_dataset & skip GPU tensor break. test=develop

* fix the order of unfold parameters (#34156)

* fix the order of unfold parameters

* fix the order of unfold parameters (#34156)

* fix the order of unfold parameters

* fix unfold

Add more information to tensor.grad warning message.

* support Nest sequtial container

* rename model path

* update readme test=document_fix

* update while loop docs test=document_fix

* Save all the information of 'ParamBase' in 'Layer'. (#33500)

* Save all the information of 'ParamBase' in 'Layer'.

* edit unittest

* delete the function of saving layer object. (#33697)

* delete the function of saving layer object.

* edit doc of paddle.save/load and polish error message

* update xpu cmake for kunlun (#33328)

* xpu support amp (#33809)

* fix bug DLTP-31078 (#33877)

* update xpu cmake (#33906)

* [xpu] add dropout & amp ops in xpu place (#33891)
Co-authored-by: NTTerror <tangzhiyi11@users.noreply.github.com>

[oneDNN] Fix to #33282 , added support of X input broadcasting to oneDNN elementwise ops (#33549) (#33845)

* - fix to #33282

* - Increased threshold for elementwise_mul_bf16 grad

* -disabled faulty UT

* - fix to approval

* del python2 code

* cherry-pick 33556

Bug fixes， [Cherry-pick][Dy2Stat] Fix unique_name in create_static_variable_gast_node (#33963)

cherry-pick #33818

[Dy2Stat] Support Python3 type hint (#33745)

cherry-pick Specify gast version in requirements.txt

解决windows cmd和powershell显示乱码的问题

* [XPU] Update cmake options for xpu. (#33450)

* patch in inference third_party

* cherry-pick fix_output_padding_conv

* add repr unittest for conv

* fix gather op and add logsumexp op on kunlun

* update xpu depence

* update tests and fix elementwise_add

* Add raw program meta optimizer (#32597)

* add raw program, test=develop

* add precision unitest for executor all reduce (#33339)

* fix dp (#33297)
Co-authored-by: NYuang Liu <liuyuang@baidu.com>
Co-authored-by: N李季 <2042519524@qq.com>

* 1, remove layernorm dynamic fp16; 2, let reshape out in dynamic shape (#33535)

* Fix gather infer shape using axis (#33413)

* fix gather shape bug

* fix None

* fix topo

* Fix hang of hybrid parallel in new_group  (#33141)

* fix hang of hybrid parallel

* fix new_group for hang problem

* fix hang

[cherry-pick] Polish code for setitem/getitem and support index for list/Tensor/None/Ellipsis/bool (#33528)

* [cherry-pick 2.1] Polish code for _getitem_impl_ (#32868)

* [cherry-pick] Polish code for setitem and getitem (#32911)

* [slice getitem] Support getitem idx is Tensor or List (#33000)

* [getitem] Support index is None for getitem in static mode (#33001)

* [Static getitem] Support static Variable getitem for Ellipsis index (#32876)

* [static getitem]Support index is list bool for getitem in static mode (#33298)

* add warning log for DataLoader output format imcompatible upgrade. test=develop

* add unittest. test=develop

* fix ci converage. test=develop

* fix ci coverage. test=develop

修复pylayer 返回to_tensor时触发段错误的bug。
原因：

如果在Python端修改了stop_gradient属性，c++ 端InnerSetOverridedStopGradient 无法修改stop_gradient属性，在c++端调用SetOverridedStopGradient修改stop_gradient属性。
to_tensor产生的tensor的grad var的DataType为默认值（-1），在backward的过程中grad var的DataType不能为默认值（-1），因此在调用ForwardDataType设置grad var的DataType。

原始PR：#33303

* Eliminate numerical differences of LayerNorm; fix LayerNorm Nan Bug while large data input

* fix bug while large shape of data input

* update 2.0 public api in all left files

* reverse device.py all list;
fix some flake8 errors