Ignore warnings in Clang headers
Ignore warnings in Clang headers

(as occur at least in trunk Clang builds)

Change-Id: I7e74200ae1042133fa04477e39e46fd2f01cc1b0

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