Some symbol annotation fixes for Windows

Summary: Pull Request resolved: pytorch#10369

Differential Revision: D9300187

Pulled By: ezyang

fbshipit-source-id: bf29966ad6aa221332b7232a965fb85e652f866d

Author: peterjc123

aten/src/ATen/Registry.h

@@ -114,7 +114,7 @@ class AT_API Registry {
 };
 
 template <class SrcType, class ObjectPtrType, class... Args>
-class AT_API Registerer {
+class Registerer {
  public:
   Registerer(
       const SrcType& key,

aten/src/ATen/function_wrapper.py

@@ -119,7 +119,7 @@ def TypedDict(name, attrs, total=True):  # type: ignore
 
 # add non-virtual declaration to Tensor.h
 TENSOR_METHOD_DECLARATION = CodeTemplate("""\
-${return_type} ${api_name}(${method_formals_with_defaults})${const_mark};
+AT_API ${return_type} ${api_name}(${method_formals_with_defaults})${const_mark};
 """)
 # add non-virtual declaration to Tensor.cpp
 TENSOR_METHOD_DEFINITION = CodeTemplate("""\