@Deprecated
  boolean checkEquivalenceHelper(final JSType that, EquivalenceMethod eqMethod) {
    return checkEquivalenceHelper(
        that,
        eqMethod,
        EqCache.create());
  }
@ Deprecated boolean checkEquivalenceHelper ( final JSType that , EquivalenceMethod eqMethod ) { return checkEquivalenceHelper ( that , eqMethod , EqCache . create ( ) ) ; }
An equivalence visitor.