code: public IntStreamEx dropWhile(IntPredicate predicate) {
          return VER_SPEC.callWhile(this, Objects.requireNonNull(predicate), true);
      }
docs: Returns a stream consisting of all elements from this stream starting
  from the first element which does not match the given predicate. If the
  predicate is true for all stream elements, an empty stream is returned.
  
  <p>
  This is a stateful operation. It can be either
  <a href="package-summary.html#StreamOps">intermediate or
  quasi-intermediate</a>. When using with JDK 1.9 or higher it calls the
  corresponding JDK 1.9 implementation. When using with JDK 1.8 it uses own
  implementation.
  
  <p>
  While this operation is quite cheap for sequential stream, it can be
  quite expensive on parallel pipelines.
  
  @param predicate a non-interfering, stateless predicate to apply to
  elements.
  @return the new stream.
  @since 0.3.6