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/core/ImportOrganizeTest.java
buf.append("public class "); buf.append(name); buf.append(" {\n");
				buf.append("}\n");
				pack2.createCompilationUnit(name + ".java", buf.toString(), false, null);
			}
		}
		StringBuffer body= new StringBuffer();
		body.append("public class C {\n");
		for (int i= 0; i < types.length; i++) {
			String name= Signature.getSimpleName(types[i]);
			body.append(name); body.append(" a"); body.append(i); body.append(";\n");
		}
		body.append("}\n");
		IPackageFragment pack1= sourceFolder.createPackageFragment("pack1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package pack1;\n");
		buf.append("\n");
		buf.append(body.toString());
		ICompilationUnit cu= pack1.createCompilationUnit("C.java", buf.toString(), false, null);
		IChooseImportQuery query= createQuery("C", new String[] {}, new int[] {});
		OrganizeImportsOperation op= new OrganizeImportsOperation(cu, order, threshold, false, true, true, query);
		op.run(null);
		buf= new StringBuffer();
		buf.append("package pack1;\n");
		buf.append("\n");
		buf.append("import java.util.*;\n");
		buf.append("\n");
		buf.append("import org.eclipse.core.runtime.IAdaptable;\n");
		buf.append("import org.eclipse.swt.accessibility.ACC;\n");
		buf.append("import org.eclipse.swt.accessibility.AccessibleControlEvent;\n");
		buf.append("\n");