Fix memory leak in zephir_fast_str_replace
Fix memory leak in zephir_fast_str_replace

patrick-zippenfenig/zephir,aaam/zephir,zephir-lang/zephir,sjinks/zephir,gsouf/zephir,steffengy/zephir,KorsaR-ZN/zephir,fezfez/zephir,cesarmarinhorj/zephir,dreamsxin/zephir,cesarmarinhorj/zephir,fezfez/zephir,sjinks/zephir,vpg/zephir,patrick-zippenfenig/zephir,sjinks/zephir,janusnic/zephir,janusnic/zephir,vpg/zephir,cesarmarinhorj/zephir,janusnic/zephir,carlmcdade/zephir,joeyhub/zephir,patrick-zippenfenig/zephir,phalcon/zephir,joeyhub/zephir,sergeyklay/zephir,fezfez/zephir,aaam/zephir,sjinks/zephir,aaam/zephir,zephir-lang/zephir,aaam/zephir,phalcon/zephir,vpg/zephir,patrick-zippenfenig/zephir,cesarmarinhorj/zephir,phalcon/zephir,vpg/zephir,zephir-lang/zephir,dreamsxin/zephir,dreamsxin/zephir,sergeyklay/zephir,KorsaR-ZN/zephir,vpg/zephir,steffengy/zephir,vpg/zephir,steffengy/zephir,joeyhub/zephir,phalcon/zephir,phalcon/zephir,fezfez/zephir,janusnic/zephir,carlmcdade/zephir,joeyhub/zephir,KorsaR-ZN/zephir,patrick-zippenfenig/zephir,janusnic/zephir,gsouf/zephir,carlmcdade/zephir,dreamsxin/zephir,phalcon/zephir,joeyhub/zephir,sergeyklay/zephir,sergeyklay/zephir,patrick-zippenfenig/zephir,gsouf/zephir,steffengy/zephir,steffengy/zephir,carlmcdade/zephir,sjinks/zephir,sjinks/zephir,KorsaR-ZN/zephir,janusnic/zephir,carlmcdade/zephir,KorsaR-ZN/zephir,dreamsxin/zephir,zephir-lang/zephir,KorsaR-ZN/zephir,gsouf/zephir,gsouf/zephir,zephir-lang/zephir,joeyhub/zephir,cesarmarinhorj/zephir,aaam/zephir,dreamsxin/zephir,aaam/zephir,sergeyklay/zephir,cesarmarinhorj/zephir,fezfez/zephir,sergeyklay/zephir,carlmcdade/zephir,fezfez/zephir,gsouf/zephir,steffengy/zephir