* parse.y (dsymbol_alloc): set global_symbols.minor_marked to 0.
* parse.y (dsymbol_check): set RSYMBOL(sym)->fstr to 0
  because we should not touch fstr after that.
* parse.y (rb_gc_free_dsymbol): skip deleting str and sym
  from tables if fstr == 0.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46752 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* 2014-07-08

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46753 b2dd03c8-39d4-4d8f-98ff-823fe69b080e