text_pango: Warn for dead canary in dealloc
text_pango: Warn for dead canary in dealloc

akshayaurora/kivy,matham/kivy,inclement/kivy,kivy/kivy,rnixx/kivy,matham/kivy,inclement/kivy,kivy/kivy,akshayaurora/kivy,matham/kivy,inclement/kivy,akshayaurora/kivy,matham/kivy,rnixx/kivy,rnixx/kivy,kivy/kivy