Rename declarations in view of variable grammar declaration changes

tests/test_AffectationProcessor.cpp

tests/test_AffectationToStringProcessor.cpp

tests/test_ArraySubscriptProcessor.cpp

tests/test_BinaryExpressionProcessor_utils.hpp

tests/test_CFunctionProcessor.cpp

tests/test_ConcatExpressionProcessor.cpp

tests/test_DoWhileProcessor.cpp

tests/test_ForProcessor.cpp

tests/test_FunctionProcessor.cpp

tests/test_IfProcessor.cpp

tests/test_IncDecExpressionProcessor.cpp

tests/test_ListAffectationProcessor.cpp

tests/test_NameProcessor.cpp

tests/test_OStreamProcessor.cpp

tests/test_TupleToVectorProcessor.cpp

tests/test_UnaryExpressionProcessor.cpp

tests/test_WhileProcessor.cpp