@Override public void visitReferenceExpression(final @NotNull PsiReferenceExpression expression) {
        super.visitReferenceExpression(expression);
        PsiElement resolved = expression.resolve();
        if (resolved instanceof PsiParameter) {
          int i = ArrayUtil.find(parameters, resolved);
          if (i != -1) {
            suspects.add(i);
          }
        }
      }
@Override public void visitReferenceExpression(final @NotNull PsiReferenceExpression expression)