Bug 123468 [clean up] 'add this qualifier' super.field becomes super.this.field
org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/quickfix/CleanUpTest.java
buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E2 {\n");
		buf.append("    private void foo() {}\n");
		buf.append("    private void bar() {}\n");
		buf.append("}\n");
		ICompilationUnit cu2= pack1.createCompilationUnit("E2.java", buf.toString(), false, null);
		
		IPackageFragment pack2= fSourceFolder.createPackageFragment("test2", false, null);
		buf= new StringBuffer();
		buf.append("package test2;\n");
		buf.append("public class E3 {\n");
		buf.append("    private class E3Inner {\n");
		buf.append("        private void foo() {}\n");
		buf.append("    }\n");
		buf.append("    public void foo() {\n");
		buf.append("        Runnable r= new Runnable() {\n");
		buf.append("            public void run() {}\n");
		buf.append("            private void foo() {};\n");
		buf.append("        };\n");
		buf.append("    }\n");
		buf.append("}\n");
		ICompilationUnit cu3= pack2.createCompilationUnit("E3.java", buf.toString(), false, null);
		
		ICleanUp cleanUp= new UnusedCodeCleanUp(UnusedCodeCleanUp.REMOVE_UNUSED_PRIVATE_METHODS);
		
		setOptions(cleanUp);
		
		CompilationUnit[] units= compile(new ICompilationUnit[] {cu1, cu2, cu3});