Extract list of ltype tokens to constants

Author: tompng

lib/irb/ruby-lex.rb

@@ -389,13 +389,16 @@ def check_corresponding_token_depth(tokens, lines, line_index)
  indent if indent_level < prev_indent_level
  end
 
+ LTYPE_TOKENS = %i[
+ on_heredoc_beg on_tstring_beg
+ on_regexp_beg on_symbeg on_backtick
+ on_symbols_beg on_qsymbols_beg
+ on_words_beg on_qwords_beg
+ ]
+
  def ltype_from_open_tokens(opens)
  start_token = opens.reverse_each.find do |tok|
- %i[
- on_heredoc_beg on_tstring_beg on_symbeg on_regexp_beg
- on_symbols_beg on_qsymbols_beg
- on_words_beg on_qwords_beg
- ].include?(tok.event)
+ LTYPE_TOKENS.include?(tok.event)
  end
  return nil unless start_token