Fix more warnings by defining variables and using instance_variable_defined? instead instance_variable_get.
Fix more warnings by defining variables and using instance_variable_defined? instead instance_variable_get.

brchristian/rails,amoody2108/TechForJustice,untidy-hair/rails,untidy-hair/rails,kddeisz/rails,arunagw/rails,kmcphillips/rails,amoody2108/TechForJustice,EmmaB/rails-1,vassilevsky/rails,bogdanvlviv/rails,notapatch/rails,kenta-s/rails,kirs/rails-1,Edouard-chin/rails,alecspopa/rails,marklocklear/rails,flanger001/rails,utilum/rails,odedniv/rails,rafaelfranca/omg-rails,palkan/rails,Stellenticket/rails,illacceptanything/illacceptanything,koic/rails,travisofthenorth/rails,bolek/rails,illacceptanything/illacceptanything,alecspopa/rails,georgeclaghorn/rails,yasslab/railsguides.jp,illacceptanything/illacceptanything,illacceptanything/illacceptanything,sergey-alekseev/rails,vipulnsward/rails,hanystudy/rails,ttanimichi/rails,palkan/rails,kddeisz/rails,BlakeWilliams/rails,illacceptanything/illacceptanything,88rabbit/newRails,lcreid/rails,mtsmfm/railstest,mijoharas/rails,vipulnsward/rails,sealocal/rails,Stellenticket/rails,baerjam/rails,koic/rails,betesh/rails,matrinox/rails,lucasmazza/rails,pschambacher/rails,gauravtiwari/rails,yawboakye/rails,yalab/rails,rossta/rails,printercu/rails,Stellenticket/rails,samphilipd/rails,maicher/rails,untidy-hair/rails,mohitnatoo/rails,illacceptanything/illacceptanything,Envek/rails,deraru/rails,jeremy/rails,vassilevsky/rails,georgeclaghorn/rails,BlakeWilliams/rails,assain/rails,Sen-Zhang/rails,alecspopa/rails,esparta/rails,bogdanvlviv/rails,assain/rails,eileencodes/rails,mechanicles/rails,yawboakye/rails,yhirano55/rails,samphilipd/rails,pvalena/rails,kirs/rails-1,joonyou/rails,gavingmiller/rails,Edouard-chin/rails,iainbeeston/rails,odedniv/rails,joonyou/rails,mathieujobin/reduced-rails-for-travis,Vasfed/rails,Erol/rails,voray/rails,gauravtiwari/rails,notapatch/rails,bradleypriest/rails,ngpestelos/rails,kachick/rails,aditya-kapoor/rails,koic/rails,lcreid/rails,odedniv/rails,schuetzm/rails,aditya-kapoor/rails,fabianoleittes/rails,pschambacher/rails,voray/rails,rbhitchcock/rails,MichaelSp/rails,sealocal/rails,eileencodes/rails,assain/rails,tjschuck/rails,mtsmfm/rails,mtsmfm/railstest,fabianoleittes/rails,prathamesh-sonpatki/rails,repinel/rails,arunagw/rails,ngpestelos/rails,rails/rails,sealocal/rails,illacceptanything/illacceptanything,bolek/rails,gcourtemanche/rails,tgxworld/rails,betesh/rails,deraru/rails,kmayer/rails,brchristian/rails,gavingmiller/rails,kaspth/rails,kddeisz/rails,bolek/rails,kenta-s/rails,gfvcastro/rails,BlakeWilliams/rails,MichaelSp/rails,stefanmb/rails,ttanimichi/rails,georgeclaghorn/rails,tgxworld/rails,bradleypriest/rails,hanystudy/rails,arjes/rails,kmcphillips/rails,notapatch/rails,eileencodes/rails,felipecvo/rails,sergey-alekseev/rails,MSP-Greg/rails,iainbeeston/rails,pvalena/rails,maicher/rails,tgxworld/rails,MSP-Greg/rails,aditya-kapoor/rails,deraru/rails,yalab/rails,marklocklear/rails,yawboakye/rails,rafaelfranca/omg-rails,jeremy/rails,rails/rails,starknx/rails,schuetzm/rails,mohitnatoo/rails,travisofthenorth/rails,palkan/rails,mohitnatoo/rails,Spin42/rails,sergey-alekseev/rails,richseviora/rails,brchristian/rails,mathieujobin/reduced-rails-for-travis,xlymian/rails,yahonda/rails,illacceptanything/illacceptanything,kddeisz/rails,rbhitchcock/rails,Edouard-chin/rails,arjes/rails,EmmaB/rails-1,samphilipd/rails,maicher/rails,MichaelSp/rails,repinel/rails,yahonda/rails,yasslab/railsguides.jp,Envek/rails,kmayer/rails,richseviora/rails,stefanmb/rails,vassilevsky/rails,shioyama/rails,tgxworld/rails,yalab/rails,Sen-Zhang/rails,xlymian/rails,mohitnatoo/rails,lcreid/rails,Envek/rails,riseshia/railsguides.kr,kmcphillips/rails,baerjam/rails,rbhitchcock/rails,kaspth/rails,mechanicles/rails,joonyou/rails,illacceptanything/illacceptanything,illacceptanything/illacceptanything,fabianoleittes/rails,esparta/rails,Edouard-chin/rails,iainbeeston/rails,schuetzm/rails,shioyama/rails,ledestin/rails,eileencodes/rails,riseshia/railsguides.kr,georgeclaghorn/rails,illacceptanything/illacceptanything,Stellenticket/rails,palkan/rails,travisofthenorth/rails,utilum/rails,coreyward/rails,lcreid/rails,88rabbit/newRails,Erol/rails,tijwelch/rails,yasslab/railsguides.jp,jeremy/rails,Spin42/rails,kirs/rails-1,pschambacher/rails,coreyward/rails,flanger001/rails,vipulnsward/rails,matrinox/rails,printercu/rails,yasslab/railsguides.jp,kachick/rails,gavingmiller/rails,arjes/rails,yhirano55/rails,baerjam/rails,ngpestelos/rails,elfassy/rails,yahonda/rails,deraru/rails,gfvcastro/rails,voray/rails,mechanicles/rails,flanger001/rails,kenta-s/rails,yhirano55/rails,ledestin/rails,tjschuck/rails,utilum/rails,pvalena/rails,felipecvo/rails,kaspth/rails,gfvcastro/rails,Vasfed/rails,tijwelch/rails,coreyward/rails,amoody2108/TechForJustice,tijwelch/rails,bradleypriest/rails,baerjam/rails,rails/rails,prathamesh-sonpatki/rails,prathamesh-sonpatki/rails,mechanicles/rails,mijoharas/rails,schuetzm/rails,stefanmb/rails,mtsmfm/rails,assain/rails,lucasmazza/rails,lucasmazza/rails,notapatch/rails,arunagw/rails,kmcphillips/rails,yalab/rails,MSP-Greg/rails,mijoharas/rails,arunagw/rails,yahonda/rails,fabianoleittes/rails,shioyama/rails,kamipo/rails,starknx/rails,felipecvo/rails,MSP-Greg/rails,joonyou/rails,riseshia/railsguides.kr,gauravtiwari/rails,illacceptanything/illacceptanything,kachick/rails,flanger001/rails,Sen-Zhang/rails,EmmaB/rails-1,starknx/rails,elfassy/rails,gfvcastro/rails,gcourtemanche/rails,illacceptanything/illacceptanything,elfassy/rails,esparta/rails,illacceptanything/illacceptanything,repinel/rails,rafaelfranca/omg-rails,esparta/rails,rossta/rails,utilum/rails,mtsmfm/rails,prathamesh-sonpatki/rails,repinel/rails,untidy-hair/rails,kamipo/rails,88rabbit/newRails,Vasfed/rails,shioyama/rails,richseviora/rails,Envek/rails,marklocklear/rails,betesh/rails,gcourtemanche/rails,BlakeWilliams/rails,tjschuck/rails,printercu/rails,matrinox/rails,iainbeeston/rails,illacceptanything/illacceptanything,Erol/rails,ledestin/rails,hanystudy/rails,yawboakye/rails,tjschuck/rails,mtsmfm/railstest,rossta/rails,vipulnsward/rails,aditya-kapoor/rails,bogdanvlviv/rails,Spin42/rails,betesh/rails,jeremy/rails,kamipo/rails,Vasfed/rails,yhirano55/rails,ttanimichi/rails,Erol/rails,riseshia/railsguides.kr,printercu/rails,kmayer/rails,mathieujobin/reduced-rails-for-travis,travisofthenorth/rails,xlymian/rails,bogdanvlviv/rails,pvalena/rails,rails/rails