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/ModifierCorrectionsQuickFixTest.java
CUCorrectionProposal proposal= (CUCorrectionProposal) proposals.get(0);
		String preview= getPreviewContent(proposal);
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E<T> {\n");
		buf.append("    public static <M> void xoo(M m) {\n");
		buf.append("    }\n");		
		buf.append("    public static void foo() {\n");
		buf.append("        xoo(Boolean.TRUE);\n");
		buf.append("    }\n");
		buf.append("}\n");
		assertEqualString(preview, buf.toString());
	}	
	
	public void testStaticMethodRequestedInOtherType() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class X {\n");
		buf.append("    public void xoo() {\n");
		buf.append("    }\n");
		buf.append("}\n");
		pack1.createCompilationUnit("X.java", buf.toString(), false, null);
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E {\n");
		buf.append("    public void foo() {\n");
		buf.append("         X.xoo();\n");
		buf.append("    }\n");
		buf.append("}\n");