Bug 119170 [quickfix] "change access to static" fails when field or inner class hides static class name
org.eclipse.jdt.ui.tests/ui/org/eclipse/jdt/ui/tests/quickfix/CleanUpTest.java
String[] previews= new String[numberOfFixes];
		for (int i= offset; i < numberOfFixes; i++) {
			IFix fix= cleanUp.createFix(units[i]);
			assertNotNull("There are problems but no fix", fix);
			TextChange change= fix.createChange();
			assertNotNull("Null change for an existing fix", change);
			previews[i - offset]= change.getPreviewContent(null);
		}
		assertEqualStringsIgnoreOrder(previews, new String[] { expected1, expected2, expected3});	
	}
	public void testUnusedCode01() throws Exception {
		IPackageFragment pack1= fSourceFolder.createPackageFragment("test1", false, null);
		StringBuffer buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("import java.util.List;\n");
		buf.append("public class E1 {\n");
		buf.append("    public void foo() {\n");
		buf.append("    }\n");
		buf.append("}\n");
		ICompilationUnit cu1= pack1.createCompilationUnit("E1.java", buf.toString(), false, null);
		
		buf= new StringBuffer();
		buf.append("package test1;\n");
		buf.append("import java.util.ArrayList;\n");
		buf.append("import java.util.*;\n");
		buf.append("public class E2 {\n");
		buf.append("}\n");
		ICompilationUnit cu2= pack1.createCompilationUnit("E2.java", buf.toString(), false, null);
		
		IPackageFragment pack2= fSourceFolder.createPackageFragment("test2", false, null);