Avoid self-assignment warnings in Tcl-wrapper code
Avoid self-assignment warnings in Tcl-wrapper code

The generated main ${class}CppCommand wrapper method dispatch function
pre-declares temporary int, double, char[], and error variables used for
argument parsing.  If the class has no methods with an argument of one
of these types then the temporary will be unused.  Previously the
declaration was followed by a self assignment to avoid unused variable
warnings.  Now at least one compiler warns about self assignment so
instead use a cast to void to avoid unused variable warnings.

jmerkow/VTK,jmerkow/VTK,jmerkow/VTK,collects/VTK,sankhesh/VTK,msmolens/VTK,gram526/VTK,johnkit/vtk-dev,collects/VTK,hendradarwin/VTK,ashray/VTK-EVM,sumedhasingla/VTK,SimVascular/VTK,keithroe/vtkoptix,gram526/VTK,jmerkow/VTK,keithroe/vtkoptix,demarle/VTK,keithroe/vtkoptix,sankhesh/VTK,msmolens/VTK,hendradarwin/VTK,spthaolt/VTK,spthaolt/VTK,gram526/VTK,johnkit/vtk-dev,SimVascular/VTK,daviddoria/PointGraphsPhase1,hendradarwin/VTK,ashray/VTK-EVM,sumedhasingla/VTK,ashray/VTK-EVM,sumedhasingla/VTK,gram526/VTK,ashray/VTK-EVM,biddisco/VTK,ashray/VTK-EVM,biddisco/VTK,demarle/VTK,demarle/VTK,gram526/VTK,cjh1/VTK,spthaolt/VTK,candy7393/VTK,SimVascular/VTK,biddisco/VTK,johnkit/vtk-dev,daviddoria/PointGraphsPhase1,mspark93/VTK,ashray/VTK-EVM,spthaolt/VTK,hendradarwin/VTK,cjh1/VTK,sumedhasingla/VTK,cjh1/VTK,gram526/VTK,mspark93/VTK,SimVascular/VTK,biddisco/VTK,aashish24/VTK-old,ashray/VTK-EVM,berendkleinhaneveld/VTK,SimVascular/VTK,aashish24/VTK-old,johnkit/vtk-dev,collects/VTK,jmerkow/VTK,msmolens/VTK,demarle/VTK,candy7393/VTK,cjh1/VTK,biddisco/VTK,daviddoria/PointGraphsPhase1,spthaolt/VTK,keithroe/vtkoptix,jmerkow/VTK,SimVascular/VTK,candy7393/VTK,hendradarwin/VTK,gram526/VTK,sumedhasingla/VTK,collects/VTK,aashish24/VTK-old,sumedhasingla/VTK,mspark93/VTK,berendkleinhaneveld/VTK,sankhesh/VTK,aashish24/VTK-old,msmolens/VTK,demarle/VTK,mspark93/VTK,candy7393/VTK,msmolens/VTK,keithroe/vtkoptix,sumedhasingla/VTK,sankhesh/VTK,berendkleinhaneveld/VTK,berendkleinhaneveld/VTK,berendkleinhaneveld/VTK,candy7393/VTK,demarle/VTK,spthaolt/VTK,aashish24/VTK-old,johnkit/vtk-dev,spthaolt/VTK,johnkit/vtk-dev,daviddoria/PointGraphsPhase1,keithroe/vtkoptix,cjh1/VTK,hendradarwin/VTK,candy7393/VTK,berendkleinhaneveld/VTK,aashish24/VTK-old,sankhesh/VTK,keithroe/vtkoptix,mspark93/VTK,hendradarwin/VTK,mspark93/VTK,gram526/VTK,msmolens/VTK,demarle/VTK,SimVascular/VTK,sumedhasingla/VTK,msmolens/VTK,sankhesh/VTK,daviddoria/PointGraphsPhase1,johnkit/vtk-dev,biddisco/VTK,jmerkow/VTK,mspark93/VTK,candy7393/VTK,candy7393/VTK,SimVascular/VTK,demarle/VTK,sankhesh/VTK,daviddoria/PointGraphsPhase1,berendkleinhaneveld/VTK,cjh1/VTK,keithroe/vtkoptix,ashray/VTK-EVM,collects/VTK,sankhesh/VTK,jmerkow/VTK,collects/VTK,msmolens/VTK,biddisco/VTK,mspark93/VTK