parse.y: use rb_fstring() for strings stored in the symbol table
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44057 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
parse.y: use rb_fstring() for strings stored in the symbol table
[Bug #9171] [ruby-core:58656]
allows rb_fstring() calls from the parser (before cString is created)
before cString was defined
objects after boot
table entries are fstrings
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44057 b2dd03c8-39d4-4d8f-98ff-823fe69b080e