Avoid incomplete type in fn sig to keep ubsan's RTTI-based checks happy
Avoid incomplete type in fn sig to keep ubsan's RTTI-based checks happy

Change-Id: Id8796438fd63065a9aefdd4e142b6638a65bbb5f

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core