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/ReturnTypeQuickFixTest.java
buf= new StringBuffer();
				buf.append("package test1;\n");
				buf.append("public class E {\n");
				buf.append("    public void foo() {\n");
				buf.append("        //do nothing\n");
				buf.append("    }\n");
				buf.append("}\n");
				assertEqualString(preview, buf.toString());
			} else {
				assertTrue("duplicated entries", doRename);
				doRename= false;
				
				CUCorrectionProposal proposal= (CUCorrectionProposal) elem;
				String preview= getPreviewContent(proposal);
				buf= new StringBuffer();
				buf.append("package test1;\n");
				buf.append("public class E {\n");
				buf.append("    public E() {\n");
				buf.append("        //do nothing\n");	
				buf.append("    }\n");
				buf.append("}\n");
				assertEqualString(preview, buf.toString());
			}
		}	
		
	}
	
	
	public void testReturnTypeDeclMissing() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);