Add warnings if you try to use a child anchor that isn't inside a buffer.

Add warnings if you try to use a child anchor that isn't inside a buffer.

2002-02-06  Havoc Pennington  <hp@redhat.com>

	* gtk/gtktextchild.c: Add warnings if you try to use a child
	anchor that isn't inside a buffer. Really kind of lame;
	we should separate the anchor from the buffer. But not worth
	fixing for now. #70601