Fix _type field for anonymous classes.
Fix _type field for anonymous classes.

[ fix #2819 ]

zaithottakath/mongoid,voldy/mongoid,Azzurrio/mongoid,sivagollapalli/mongoid,nicolasblanco/mongoid,joshleitzel/mongoid,timgluz/mongoid,mongoid/mongoid,uranazo/mongoid,rogerz42892/mongoid,chetan/mongoid,canvas-drw/mongoid,grossws/mongoid,dbkbali/mongoid,rinmu/mongoid,zBMNForks/mongoid,mschulkind/mongoid,camallen/mongoid,abezzub/mongoid,Exoth/mongoid,matbox/mongoid,jbrien/mongoid,arnkorty/mongoid,tzar/mongoid,Speakol/mongoid,drfeelngood/mongoid,SumeruSoftware/mongoid,kayakyakr/mongoid,kcdragon/mongoid,manikandan-kandasamy/mongoid,hashrocketeer/mongoid,Azzurrio/mongoid,gregmolnar/mongoid,nviennot/mongoid,joelcogen/mongoid,Sharevari-Inc/mongoid,asaaki/mongoid,karmakaze/mongoid,tricknotes/mongoid,imomoisoft/mongoid,cpuguy83/mongoid,narutosanjiv/mongoid,Codas/mongoid,simi/mongoid,dustinwatson/mongoid,hashrocketeer/mongoid,shotoso/mongoid,captain-lucas/mongoid,subhashb/mongoid,timgluz/mongoid,estolfo/mongoid,ErisExchange/mongoid,jasl/mongoid,500px/mongoid,jtescher/mongoid,abezzub/mongoid,uranazo/mongoid,elia/mongoid,kevinmarvin/mongoid,aj0strow/mongoid,janroesner/mongoid,imomoisoft/mongoid,colinyoung/mongoid,kay-kim/mongoid,arnkorty/mongoid,mysociety/mongoid,cao7113/mongoid,rpocklin/mongoid,mongoid/mongoid,jonhyman/mongoid,dbkbali/mongoid,CIRCUITLLC/mongoid,Codas/mongoid,johnnyshields/mongoid,zaithottakath/mongoid,jstrocel/mongoid,bencrouse/mongoid,bencrouse/mongoid,trmmy/mongoid,apptentive-engineering/mongoid,kcdragon/mongoid,anuprit/mongoid,codedogfish/mongoid,aileron/mongoid,cpuguy83/mongoid,estolfo/mongoid,cao7113/mongoid,Numerico/mongoid,500px/mongoid,luxerama/mongoid,mongodb/mongoid,krasnoukhov/mongoid,PerfectMemory/mongoid,matbox/mongoid,cmpolis/mongoid,Subskii/mongoid,Exoth/mongoid,zenjoy/mongoid,niedhui/mongoid,infiverve/mongoid,drobune/mongoid,kuadrosx/mongoid,uniiverse/mongoid,aleksclark/mongoid,glebtv/mongoid,johnny-miyake/mongoid,aleksclark/mongoid,mgartner/mongoid,mongodb/mongoid,jtescher/mongoid,tzar/mongoid,itbakery/mongoid,itbakery/mongoid,camallen/mongoid,kayakyakr/mongoid,wuboy0307/mongoid,Speakol/mongoid,joneslee85/mongoid,mschulkind/mongoid,Zhomart/mongoid,johnny-miyake/mongoid,kuadrosx/mongoid,rubrikkfabrikken/mongoid,mikerobe/mongoid,sivagollapalli/mongoid,gregmolnar/mongoid,demarque/mongoid,sideci-sample/sideci-sample-mongoid,fredjean/mongoid,kevinmarvin/mongoid,jbrien/mongoid,jasl/mongoid,mgartner/mongoid,chetan/mongoid,niedhui/mongoid,herimedia/mongoid,etomic/mongoid,evansagge/mongoid,voldy/mongoid,stnguyen/mongoid,mattconnolly/mongoid,cmpolis/mongoid,rafaelgaspar/mongoid,Numerico/mongoid,bearded/mongoid,jstrocel/mongoid,manikandan-kandasamy/mongoid,parov/mongoid,janroesner/mongoid,bearded/mongoid,X0nic/mongoid,herimedia/mongoid,rinmu/mongoid,eljojo/mongoid,canvas-drw/mongoid,joelcogen/mongoid,robwil/mongoid,CIRCUITLLC/mongoid,hbakhtiyor/mongoid,afeld/mongoid,joshsoftware/mongoid,eljojo/mongoid,amw/mongoid,aj0strow/mongoid,greggroth/mongoid,charliehq/mongoid,evansagge/mongoid,Sharevari-Inc/mongoid,wuboy0307/mongoid,elia/mongoid,anuprit/mongoid,akirasosa/mongoid,luxerama/mongoid,nullstyle/mongoid,Zhomart/mongoid,infiverve/mongoid,greggroth/mongoid,77Agency/mongoid,nusco/mongoid,uniiverse/mongoid,Subskii/mongoid,grossws/mongoid,PerfectMemory/mongoid,shotoso/mongoid,praecipula/mongoid,colinyoung/mongoid,gullitmiranda/mongoid,robwil/mongoid,blackxored/mongoid,asantamar/mongoid,charliehq/mongoid,drfeelngood/mongoid,zBMNForks/mongoid,crowdtap/mongoid,tricknotes/mongoid,akirasosa/mongoid,afeld/mongoid,dustinwatson/mongoid,praecipula/mongoid,trmmy/mongoid,sideci-sample/sideci-sample-mongoid,joshleitzel/mongoid,fredjean/mongoid,apptentive-engineering/mongoid,amw/mongoid,hxx/mongoid,stnguyen/mongoid,Welovroi/mongoid,Welovroi/mongoid,aileron/mongoid,bjori/mongoid,blackxored/mongoid,glebtv/mongoid,crowdtap/mongoid,rpocklin/mongoid,krasnoukhov/mongoid,captain-lucas/mongoid,joshsoftware/mongoid,rafaelgaspar/mongoid,mongodb/mongoid,narutosanjiv/mongoid,subhashb/mongoid,mikerobe/mongoid,stevebartholomew/mongoid,mysociety/mongoid,gullitmiranda/mongoid,SumeruSoftware/mongoid,KoanHealth/mongoid,joneslee85/mongoid,hxx/mongoid,nviennot/mongoid,asantamar/mongoid,simi/mongoid,hbakhtiyor/mongoid,kentaroi/mongoid,77Agency/mongoid,etomic/mongoid,sepastian/mongoid,jonhyman/mongoid,demarque/mongoid,johnnyshields/mongoid,bjori/mongoid,rogerz42892/mongoid,ErisExchange/mongoid,nusco/mongoid,zenjoy/mongoid,mattconnolly/mongoid,rubrikkfabrikken/mongoid,stevebartholomew/mongoid,kentaroi/mongoid,sepastian/mongoid,parov/mongoid,KoanHealth/mongoid,codedogfish/mongoid,drobune/mongoid,karmakaze/mongoid,asaaki/mongoid,nullstyle/mongoid,X0nic/mongoid,kay-kim/mongoid