static RedundantSortAsListHandler handler(PsiMethodCallExpression call) {
      if (MethodCallUtils.isVarArgCall(call)) return null;
      PsiExpression arg = call.getArgumentList().getExpressions()[0];
      if (!(arg.getType() instanceof PsiArrayType)) return null;
      PsiExpressionList parent = tryCast(PsiUtil.skipParenthesizedExprUp(call.getParent()), PsiExpressionList.class);
      if (parent != null) {
        PsiMethodCallExpression outerCall = tryCast(parent.getParent(), PsiMethodCallExpression.class);
        if (COLLECTIONS_SORT.test(outerCall) && PsiTreeUtil.isAncestor(parent.getExpressions()[0], call, false)) {
          return new RedundantSortAsListHandler(true);
        }
      } else {
        PsiMethodCallExpression chainedCall = ExpressionUtils.getCallForQualifier(call);
        if (LIST_SORT.test(chainedCall)) {
          return new RedundantSortAsListHandler(false);
        }
      }
      return null;
    }
static RedundantSortAsListHandler handler(PsiMethodCallExpression call)