Merge topic 'GetNeighbourIndex_doesnt_call_abort'

e54cbe85 contourtree_augmented doesn't call abort in VTK-m worklets
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !1642

vtkm/worklet/contourtree_augmented/mesh_dem_meshtypes/MeshStructureFreudenthal2D.h

@@ -142,7 +142,8 @@ public:
         return vertex - this->nCols;
       //break; // row - 1, col
       default:
-        abort(); // TODO How to generate a meaningful error message from a device (in particular when using CUDA?)
+        VTKM_ASSERT(false);
+        return vertex;
     }
   } // GetNeighbourIndex
 

vtkm/worklet/contourtree_augmented/mesh_dem_meshtypes/MeshStructureMarchingCubes.h

@@ -211,8 +211,8 @@ public:
       case 25:
         return vertex + (this->nRows * this->nCols) + this->nCols + 1; // {  1,  1,  1 }
       default:
-        abort(); // TODO How to generate a meaningful error message from a device (in particular when using CUDA?)
-        //default: std::cerr << "Internal error!"; abort();
+        VTKM_ASSERT(false);
+        return vertex;
     }
   } // GetNeighbourIndex