numpy_support: don't convert array types if possible
numpy_support: don't convert array types if possible

Same reasoning as the prior commit.

Change-Id: I78def9672e32769b252c547c96be6213232480e1

sankhesh/VTK,msmolens/VTK,sumedhasingla/VTK,johnkit/vtk-dev,hendradarwin/VTK,jmerkow/VTK,sankhesh/VTK,ashray/VTK-EVM,jmerkow/VTK,demarle/VTK,candy7393/VTK,mspark93/VTK,hendradarwin/VTK,SimVascular/VTK,mspark93/VTK,ashray/VTK-EVM,jmerkow/VTK,SimVascular/VTK,msmolens/VTK,msmolens/VTK,demarle/VTK,sumedhasingla/VTK,SimVascular/VTK,ashray/VTK-EVM,SimVascular/VTK,candy7393/VTK,msmolens/VTK,sankhesh/VTK,johnkit/vtk-dev,sankhesh/VTK,SimVascular/VTK,johnkit/vtk-dev,sumedhasingla/VTK,jmerkow/VTK,keithroe/vtkoptix,mspark93/VTK,keithroe/vtkoptix,johnkit/vtk-dev,demarle/VTK,demarle/VTK,sankhesh/VTK,msmolens/VTK,candy7393/VTK,gram526/VTK,candy7393/VTK,sumedhasingla/VTK,mspark93/VTK,jmerkow/VTK,sankhesh/VTK,keithroe/vtkoptix,gram526/VTK,gram526/VTK,gram526/VTK,hendradarwin/VTK,johnkit/vtk-dev,SimVascular/VTK,ashray/VTK-EVM,jmerkow/VTK,jmerkow/VTK,johnkit/vtk-dev,gram526/VTK,SimVascular/VTK,candy7393/VTK,hendradarwin/VTK,hendradarwin/VTK,keithroe/vtkoptix,demarle/VTK,keithroe/vtkoptix,demarle/VTK,demarle/VTK,candy7393/VTK,johnkit/vtk-dev,hendradarwin/VTK,candy7393/VTK,mspark93/VTK,jmerkow/VTK,gram526/VTK,sumedhasingla/VTK,msmolens/VTK,sumedhasingla/VTK,mspark93/VTK,ashray/VTK-EVM,msmolens/VTK,SimVascular/VTK,keithroe/vtkoptix,keithroe/vtkoptix,keithroe/vtkoptix,ashray/VTK-EVM,sumedhasingla/VTK,gram526/VTK,candy7393/VTK,sankhesh/VTK,gram526/VTK,mspark93/VTK,mspark93/VTK,sumedhasingla/VTK,hendradarwin/VTK,ashray/VTK-EVM,ashray/VTK-EVM,msmolens/VTK,demarle/VTK,sankhesh/VTK