This test checks fo:inlines which generate multiple consecutive inlineblockparent areas. Each inlineblockparent area should appear in its own line area. Two cases: 1. A block containing multiple lines. 2. A block containing multiple child blocks which must be kept together (so that there are not break positions between the positions for the blocks).

Implicitly this test checks whether inline block content does not generate ClassCastExceptions. The exceptions would occur because an UnresolvedElement in a list of ListElements would be cast to a KnuthElement.