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In 60665 of Ruby repository,
Ripper::Lexer::State
is added. It has#==
and#&
and#|
, so theRipper::Lexer::State
objects must be placed at left operand, and new value aslex_state
must be created as a instance of the class.This fixes CI failure on ruby-head, for example https://travis-ci.org/ruby/rdoc/jobs/299223813.