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/LocalCorrectionsQuickFixTest.java
ICompilationUnit cu= pack1.createCompilationUnit("E.java", buf.toString(), false, null);
		CompilationUnit astRoot= getASTRoot(cu);
		ArrayList proposals= collectCorrections(cu, astRoot);
		assertNumberOfProposals(proposals, 2);
		assertCorrectLabels(proposals);
		
	
		CUCorrectionProposal proposal= (CUCorrectionProposal) proposals.get(0);
		String preview1= getPreviewContent(proposal);
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("import java.io.IOException;\n");	
		buf.append("import java.text.ParseException;\n");	
		buf.append("public class E {\n");
		buf.append("    public String goo() throws IOException, ParseException {\n");
		buf.append("        return null;\n");
		buf.append("    }\n");
		buf.append("    /**\n");
		buf.append("     * Not much to say here.\n");
		buf.append("     * @throws ParseException Parsing failed\n");
		buf.append("     * @throws IOException \n");
		buf.append("     */\n");
		buf.append("    public void foo() throws ParseException, IOException {\n");
		buf.append("        goo().substring(2);\n");
		buf.append("    }\n");
		buf.append("}\n");
		String expected1= buf.toString();
		
		proposal= (CUCorrectionProposal) proposals.get(1);
		String preview2= getPreviewContent(proposal);