Move iter into Has class

#2088

Author: jhy

src/main/java/org/jsoup/select/StructuralEvaluator.java

@@ -58,19 +58,18 @@ public boolean matches(Element root, Element element) {
  }
  }
 
- final ThreadLocal<NodeIterator<Element>> threadHasIter =
- ThreadLocal.withInitial(() -> new NodeIterator<>(new Element("html"), Element.class));
- // the element here is just a placeholder so this can be final - gets set in restart()
-
  static class Has extends StructuralEvaluator {
+ static final ThreadLocal<NodeIterator<Element>> ThreadElementIter =
+ ThreadLocal.withInitial(() -> new NodeIterator<>(new Element("html"), Element.class));
+ // the element here is just a placeholder so this can be final - gets set in restart()
 
  public Has(Evaluator evaluator) {
  super(evaluator);
  }
 
  @Override public boolean matches(Element root, Element element) {
  // for :has, we only want to match children (or below), not the input element. And we want to minimize GCs
- NodeIterator<Element> it = threadHasIter.get();
+ NodeIterator<Element> it = ThreadElementIter.get();
 
  it.restart(element);
  while (it.hasNext()) {