Bug 127704 [clean up] 'Remove unnecessary casts' should work for nested casts
I20060214-0010 Clean up only removes one of the unnecessary casts: boolean m() { return (boolean) (Boolean) Boolean.TRUE; }
org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/quickfix/CleanUpTest.java
buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("import java.io.Serializable;\n");
		buf.append("public class E1 implements Serializable {\n");
		buf.append("\n");
		buf.append("    " + FIELD_COMMENT + "\n");
		buf.append("    private static final long serialVersionUID = 1L;\n");
		buf.append("    private Serializable s= new Serializable() {\n");
		buf.append("\n");
		buf.append("        " + FIELD_COMMENT + "\n");
		buf.append("        private static final long serialVersionUID = 1L;\n");
		buf.append("        \n");
		buf.append("    };\n");
		buf.append("}\n");
		String expected1= buf.toString();
		
		assertRefactoringResultAsExpected(refactoring, new String[] {expected1});
	}
	
	public void testRemoveBlock01() throws Exception {
		
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("public class E {\n");
		buf.append("    public void if_() {\n");
		buf.append("        if (true) {\n");
		buf.append("            ;\n");
		buf.append("        } else if (false) {\n");