ProfileMatcher should have a isNegationAware method

[julesjacobsen]

This will avoid this kind of code:

    // Verify that matcher is negation aware if negated IDs are used
    if (!negatedIds.isEmpty()
        && !NegationAwareProfileMatcher.class.isAssignableFrom(matcher.getClass())) {
      throw new NonNegatedMatcherException(matcherName);
    }