Bug 76530 [options] Warn about unused local variables and private members
I think we should warn about unused local variables and unused private members by default. These things are errors akin to unused imports, which we already warn about.
org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/quickfix/UnresolvedMethodsQuickFixTest.java
buf.append("public class E {\n");
		buf.append("    public void foo() {\n");
		buf.append("        X.xoo(1, null);\n");
		buf.append("    }\n");
		buf.append("}\n");
		String expected1= buf.toString();
		
		proposal= (CUCorrectionProposal) proposals.get(1);
		String preview2= getPreviewContent(proposal);
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class X {\n");
		buf.append("    /**\n");
		buf.append("     * @param i The int value\n");
		buf.append("     *                  More about the int value\n");
		buf.append("     * @param o The Object value\n");
		buf.append("     */\n");
		buf.append("    public static void xoo(int i, Object o) {\n");
		buf.append("    }\n");
		buf.append("\n");
		buf.append("    public static void xoo(int i) {\n");
		buf.append("    }\n");		
		buf.append("}\n");
		String expected2= buf.toString();
		proposal= (CUCorrectionProposal) proposals.get(2);
		String preview3= getPreviewContent(proposal);
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class X {\n");
		buf.append("    /**\n");