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/UnresolvedTypesQuickFixTest.java
buf.append("        ArrayList v= new ArrayList();\n");
		buf.append("    }\n");
		buf.append("}\n");
		String expected1= buf.toString();
		
		NewCUCompletionUsingWizardProposal newCUWizard= (NewCUCompletionUsingWizardProposal) proposals.get(1);
		String preview2= getWizardPreviewContent(newCUWizard);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("\n");
		buf.append("import java.util.ArrayList;\n");
		buf.append("\n");
		buf.append("public class ArrayListist extends ArrayList {\n");
		buf.append("\n");
		buf.append("}\n");
		String expected2= buf.toString();
		
		assertEqualStringsIgnoreOrder(new String[] { preview1, preview2 }, new String[] { expected1, expected2 });
	}	
		
	public void testArrayTypeInStatement() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("import java.io.*;\n");		
		buf.append("public class E {\n");
		buf.append("    void foo() {\n");
		buf.append("        Serializable[] v= new ArrayListExtra[10];\n");
		buf.append("    }\n");