Merge topic 'decimate-polyline-filter'

2e2d32ae Suppressing signed/unsigned comparison warning in vtkDecimatePolylineFilter.

Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Utkarsh Ayachit <utkarsh.ayachit@kitware.com>
Merge-request: !534

Filters/Core/vtkDecimatePolylineFilter.cxx

@@ -49,7 +49,7 @@ public:
   {
     this->Size = size;
     Vertices = new Vertex[size];
-    for (unsigned idx=0;idx<size;idx++)
+    for (vtkIdType idx=0;idx<size;idx++)
       {
       Vertices[idx].index = idx;
       Vertices[idx].id = vertexOrdering[idx];