Evas textblock: Fix the false-positive strict-aliasing issue with gcc.
Evas textblock: Fix the false-positive strict-aliasing issue with gcc.

Only happens with some versions of gcc. I think it's a false positive
because both of the items are compatible.

git-svn-id: 24a995eca3b83137dd7eab3408044d7832e202f7@57267 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

antognolli/Evas,antognolli/Evas,antognolli/Evas,antognolli/Evas