cppcheck: help it a bit to not fail with syntax error in its AST

Change-Id: I22e1405b2ad94ec4d47011c3f11d108a1bde4fba
diff --git a/sw/source/core/doc/docedt.cxx b/sw/source/core/doc/docedt.cxx
index 4b8b977..7dc26e1 100644
--- a/sw/source/core/doc/docedt.cxx
+++ b/sw/source/core/doc/docedt.cxx
@@ -327,8 +327,8 @@ void sw_GetJoinFlags( SwPaM& rPam, bool& rJoinText, bool& rJoinPrev )
                rJoinPrev = rPam.GetPoint() == pStt;
                OSL_ENSURE( !pStt->nContent.GetIndex() &&
                    pEndNd->GetText().getLength() != pEnd->nContent.GetIndex()
                    ? rPam.GetPoint()->nNode < rPam.GetMark()->nNode
                    : rPam.GetPoint()->nNode > rPam.GetMark()->nNode,
                    ? (rPam.GetPoint()->nNode < rPam.GetMark()->nNode)
                    : (rPam.GetPoint()->nNode > rPam.GetMark()->nNode),
                    "sw_GetJoinFlags");
            }
        }