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.append("package test1;\n");
		buf.append("public class E1 {\n");
		buf.append("    public void foo() {\n");
		buf.append("        String s= \"\"; //$NON-NLS-1$\n");
		buf.append("    }\n");
		buf.append("}\n");
		String expected1= buf.toString();
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E2 {\n");
		buf.append("    public String s1 = \"\"; //$NON-NLS-1$\n");
		buf.append("    public void foo() {\n");
		buf.append("        String s2 = \"\"; //$NON-NLS-1$\n");
		buf.append("        String s3 = s2 + \"\"; //$NON-NLS-1$\n");
		buf.append("    }\n");
		buf.append("}\n");
		String expected2= buf.toString();
		
		buf= new StringBuffer();
		buf.append("package test2;\n");
		buf.append("import test1.E2;\n");
		buf.append("public class E3 extends E2 {\n");
		buf.append("    public static final String s= \"\"; //$NON-NLS-1$\n");
		buf.append("    public static String bar(String s1, String s2) {\n");
		buf.append("        bar(\"\", \"\"); //$NON-NLS-1$ //$NON-NLS-2$\n");
		buf.append("        return \"\"; //$NON-NLS-1$\n");
		buf.append("    }\n");
		buf.append("}\n");
		String expected3= buf.toString();