Remove tautological comparison in CellSpan::ensureConsistency

Source/core/layout/LayoutTableSection.cpp

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 62 matching lines @@
                 row.logicalHeight = logicalHeight;
             break;
         default:
             break;
         }
     }
 }
 
 void CellSpan::ensureConsistency(const unsigned maximumSpanSize)
 {
-    RELEASE_ASSERT(m_start >= 0 && m_start <= maximumSpanSize);
-    RELEASE_ASSERT(m_end >= 0 && m_end <= maximumSpanSize);
+    static_assert(WTF::IsSameType<decltype(m_start), unsigned>::value, "Asserts below assume m_start is unsigned");
+    static_assert(WTF::IsSameType<decltype(m_end), unsigned>::value, "Asserts below assume m_end is unsigned");
+    RELEASE_ASSERT(m_start <= maximumSpanSize);
+    RELEASE_ASSERT(m_end <= maximumSpanSize);
     RELEASE_ASSERT(m_start <= m_end);
 }
 
 LayoutTableSection::LayoutTableSection(Element* element)
     : LayoutBox(element)
     , m_cCol(0)
     , m_cRow(0)
     , m_outerBorderStart(0)
     , m_outerBorderEnd(0)
     , m_outerBorderBefore(0)
@@ skipping 1547 matching lines @@
     // FIXME: The table's direction should determine our row's direction, not the section's (see bug 96691).
     if (!style()->isLeftToRightDirection())
         cellLocation.setX(table()->columnPositions()[table()->numEffCols()] - table()->columnPositions()[table()->colToEffCol(cell->col() + cell->colSpan())] + horizontalBorderSpacing);
     else
         cellLocation.setX(table()->columnPositions()[effectiveColumn] + horizontalBorderSpacing);
 
     cell->setLogicalLocation(cellLocation);
 }
 
 } // namespace blink