message: Add to BUILD the export of AttrValue to allow compilation on Windows for TF_Text.
diff: @@ -3224,6 +3224,7 @@ filegroup(
  "//tensorflow/core:framework_internal_impl", # op_def_registry
  "//tensorflow/core:lib_internal_impl", # device_lib
  "//tensorflow/core:op_gen_lib", # tf_session
  + "//tensorflow/core:protos_all_cc", # tf_text
  "//tensorflow/core/common_runtime/eager:context", # tfe
  "//tensorflow/core/common_runtime/eager:tensor_handle", # tfe
  "//tensorflow/core/common_runtime/eager:eager_executor", # tfe
  