workaround for msvc instantiating things it shouldn't
workaround for msvc instantiating things it shouldn't

The cppu::ImplInheritanceHelper1 ctor should not get instantiated, but MSVC2008
does so and then it fails to compile.

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