code: public boolean isSuppressed(Symbol symbol) {
      SuppressWarnings suppression = ASTHelpers.getAnnotation(symbol, SuppressWarnings.class);
      return suppression != null
          && !Collections.disjoint(Arrays.asList(suppression.value()), allNames());
    }
docs: Returns true if the given symbol is annotated with a {@code @SuppressWarnings} that disables
  this bug checker.