fix collect_const calls for py2.5
fix collect_const calls for py2.5

cccfran/sympy,wyom/sympy,ga7g08/sympy,pandeyadarsh/sympy,liangjiaxing/sympy,beni55/sympy,VaibhavAgarwalVA/sympy,beni55/sympy,Davidjohnwilson/sympy,Mitchkoens/sympy,flacjacket/sympy,toolforger/sympy,AunShiLord/sympy,abloomston/sympy,Mitchkoens/sympy,Arafatk/sympy,ga7g08/sympy,lindsayad/sympy,jamesblunt/sympy,Vishluck/sympy,kaushik94/sympy,MechCoder/sympy,drufat/sympy,jerli/sympy,madan96/sympy,kumarkrishna/sympy,AkademieOlympia/sympy,mafiya69/sympy,lindsayad/sympy,sahilshekhawat/sympy,AunShiLord/sympy,sampadsaha5/sympy,skirpichev/omg,grevutiu-gabriel/sympy,liangjiaxing/sympy,ga7g08/sympy,wyom/sympy,kmacinnis/sympy,jbbskinny/sympy,souravsingh/sympy,Gadal/sympy,kumarkrishna/sympy,MridulS/sympy,kevalds51/sympy,atreyv/sympy,drufat/sympy,ChristinaZografou/sympy,Davidjohnwilson/sympy,madan96/sympy,Curious72/sympy,abhiii5459/sympy,diofant/diofant,Arafatk/sympy,sunny94/temp,Davidjohnwilson/sympy,Designist/sympy,wanglongqi/sympy,yashsharan/sympy,asm666/sympy,VaibhavAgarwalVA/sympy,jamesblunt/sympy,cswiercz/sympy,iamutkarshtiwari/sympy,Mitchkoens/sympy,iamutkarshtiwari/sympy,debugger22/sympy,abhiii5459/sympy,shikil/sympy,oliverlee/sympy,MridulS/sympy,oliverlee/sympy,dqnykamp/sympy,kevalds51/sympy,hargup/sympy,mafiya69/sympy,moble/sympy,grevutiu-gabriel/sympy,meghana1995/sympy,souravsingh/sympy,Sumith1896/sympy,sahmed95/sympy,ahhda/sympy,jbbskinny/sympy,souravsingh/sympy,shipci/sympy,kumarkrishna/sympy,kaichogami/sympy,Titan-C/sympy,asm666/sympy,garvitr/sympy,garvitr/sympy,srjoglekar246/sympy,meghana1995/sympy,kaichogami/sympy,vipulroxx/sympy,mcdaniel67/sympy,pandeyadarsh/sympy,atreyv/sympy,farhaanbukhsh/sympy,rahuldan/sympy,VaibhavAgarwalVA/sympy,saurabhjn76/sympy,lindsayad/sympy,garvitr/sympy,drufat/sympy,beni55/sympy,yukoba/sympy,sunny94/temp,Curious72/sympy,vipulroxx/sympy,kmacinnis/sympy,kaichogami/sympy,cccfran/sympy,toolforger/sympy,postvakje/sympy,emon10005/sympy,mcdaniel67/sympy,MechCoder/sympy,cccfran/sympy,lidavidm/sympy,pbrady/sympy,kevalds51/sympy,sampadsaha5/sympy,amitjamadagni/sympy,maniteja123/sympy,jerli/sympy,hargup/sympy,rahuldan/sympy,jaimahajan1997/sympy,abloomston/sympy,hrashk/sympy,amitjamadagni/sympy,bukzor/sympy,debugger22/sympy,MechCoder/sympy,Designist/sympy,meghana1995/sympy,pandeyadarsh/sympy,shipci/sympy,shipci/sympy,wanglongqi/sympy,maniteja123/sympy,wanglongqi/sympy,emon10005/sympy,farhaanbukhsh/sympy,aktech/sympy,bukzor/sympy,yukoba/sympy,atsao72/sympy,sahmed95/sympy,kmacinnis/sympy,aktech/sympy,lidavidm/sympy,sahilshekhawat/sympy,debugger22/sympy,abhiii5459/sympy,toolforger/sympy,Gadal/sympy,cswiercz/sympy,hargup/sympy,asm666/sympy,Vishluck/sympy,kaushik94/sympy,Sumith1896/sympy,Vishluck/sympy,aktech/sympy,AunShiLord/sympy,shikil/sympy,Shaswat27/sympy,mcdaniel67/sympy,Curious72/sympy,ChristinaZografou/sympy,Arafatk/sympy,grevutiu-gabriel/sympy,pbrady/sympy,Titan-C/sympy,yashsharan/sympy,Sumith1896/sympy,postvakje/sympy,vipulroxx/sympy,maniteja123/sympy,moble/sympy,yashsharan/sympy,iamutkarshtiwari/sympy,jerli/sympy,rahuldan/sympy,pbrady/sympy,dqnykamp/sympy,skidzo/sympy,saurabhjn76/sympy,AkademieOlympia/sympy,moble/sympy,chaffra/sympy,mafiya69/sympy,yukoba/sympy,MridulS/sympy,ahhda/sympy,ChristinaZografou/sympy,skidzo/sympy,Shaswat27/sympy,hrashk/sympy,sunny94/temp,sahmed95/sympy,atreyv/sympy,madan96/sympy,Designist/sympy,cswiercz/sympy,jamesblunt/sympy,liangjiaxing/sympy,shikil/sympy,sampadsaha5/sympy,lidavidm/sympy,postvakje/sympy,emon10005/sympy,farhaanbukhsh/sympy,atsao72/sympy,jaimahajan1997/sympy,skidzo/sympy,hrashk/sympy,oliverlee/sympy,atsao72/sympy,kaushik94/sympy,chaffra/sympy,jaimahajan1997/sympy,Gadal/sympy,chaffra/sympy,abloomston/sympy,bukzor/sympy,wyom/sympy,sahilshekhawat/sympy,AkademieOlympia/sympy,dqnykamp/sympy,jbbskinny/sympy,Shaswat27/sympy,ahhda/sympy,Titan-C/sympy,saurabhjn76/sympy