bug #91288 (Aligning blank table cell in show all tags mode splits table)
Modified WillAlign to prevent unnecessary splitting:
- Don't execute emptyDiv special case code when start container of the
selection is a table cell element, but not a table cell or caption.
- Prevent processing of whitespace between list/table structure nodes.
- Prevent splitting when processing sub lists.
r=brade@netscape.comsr=attinasi@netscape.com
git-svn-id: svn://10.0.0.236/trunk@99847 18797224-902f-48f8-a5cc-f745e15eee43