vm/stream_desc.msg.h 导致 g++ 7.3.0 编译失败

[jackalcooper]

[ 98%] Built target of_include_copy
In file included from /oneflow_src/build-conda/3rd-install/glog/include/glog/logging.h:44:0,
                 from /oneflow_src/oneflow/core/common/flat_msg.h:6,
                 from /oneflow_src/oneflow/core/vm/stream_desc.msg.h:6,
                 from /oneflow_src/oneflow/core/vm/vm_desc.msg.h:4,
                 from /oneflow_src/oneflow/core/vm/vm_desc_test.cpp:2:
/usr/local/envs/1f-dev/x86_64-conda_cos6-linux-gnu/include/c++/7.3.0/sstream:300:7: error: 'struct std::__cxx11::basic_stringbuf<_CharT, _Traits, _Alloc>::__xfer_bufptrs' redeclared with different access
       struct __xfer_bufptrs
       ^~~~~~

[daquexian]

#2737

看起来和这个是一个问题