literals.rdoc: Update for symbol literals
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49056 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
literals.rdoc: Update for symbol literals
interpolation can be garbage collected. patch by Yihang Ho in
[ruby-core:67194]. [Bug #10671]
[ci skip]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49056 b2dd03c8-39d4-4d8f-98ff-823fe69b080e