class RuboCop::Cop::Style::SymbolArray

def correct_bracketed(node)
  syms = node.children.map do |c|
    if c.dsym_type?
      string_literal = to_string_literal(c.source)
      ':' + trim_string_interporation_escape_character(string_literal)
    else
      to_symbol_literal(c.value.to_s)
    end
  end
  lambda do |corrector|
    corrector.replace(node.source_range, "[#{syms.join(', ')}]")
  end
end