VariableOccurrenceAnalyzer analyzer = new NaiveVariableOccurrenceAnalyzerImpl();
VariableOccurrenceAnalyzer analyzer = new NaiveVariableOccurrenceAnalyzerImpl();
VariableOccurrenceAnalyzer analyzer = new NaiveVariableOccurrenceAnalyzerImpl();
VariableOccurrenceAnalyzer analyzer = new NaiveVariableOccurrenceAnalyzerImpl();