Method insert

MyGUIEngine/src/MyGUI_UString.cpp:1042–1048

	}

	UString::iterator UString::insert(iterator i, const code_point& ch)
	{
		iterator ret;
		ret.mIter = mData.insert(i.mIter, ch);
		ret.mString = this;
		return ret;
	}

	UString& UString::insert(size_type index, const UString& str)
	{