Improved loplugin:literaltoboolconversion looking into cond. exprs.
Improved loplugin:literaltoboolconversion looking into cond. exprs.

Change-Id: If54ab99fc82c7895da6bb88ebf18a11570f597ed

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