implicitboolconversion: warn about mixing bool with integer
implicitboolconversion: warn about mixing bool with integer

...in &=, |=, ^=, as does MSVC, too.

Change-Id: I57ecc9d784dd483e04ae561c62595b1d0380517f

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