fix variables shadowing

agui2/src/Algorithm/Algorithm.cpp

agui2/src/Graphics/Connection/ConnectionBox.cpp

agui2/src/Graphics/Connection/InputConnectionBox.cpp

agui2/src/Graphics/Dialogs/InputDialog.cpp

agui2/src/Graphics/Dialogs/OutputDialog.cpp

agui2/src/Graphics/GraphicsBox.cpp

agui2/src/Graphics/GraphicsView.cpp

agui2/src/Graphics/InputGraphicsBox.cpp

agui2/src/MainWindow.cpp

agui2/src/Models/AlgorithmModelBox.cpp

agui2/src/Models/ModelBox.cpp

agui2/tests/TestModelBox.cpp

agui2/tests/TestRegistry.cpp