Ideally we should be more character set aware, but at the moment we
use anonymous 7/8-bit strings in too many places.
Fix use of AddGrowable{Col,Row}. Any (non-zero) rows/columns must
have been created first by adding an item to it.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5648 8ced0084-cf51-0410-be5f-012b33b47a6e
b7c2e523b3