[svn r37623] Get rid of last frame if possible (the frame containing start_tracing should not be there, unless this is the last frame)
[svn r37623] Get rid of last frame if possible (the frame containing start_tracing should
not be there, unless this is the last frame)

--HG--
branch : trunk

vodik/pytest,bubenkoff/pytest,nicoddemus/pytest,icemac/pytest,gabrielcnr/pytest,userzimmermann/pytest,ericdill/pytest,wfxiang08/pytest,icemac/pytest,ropez/pytest,JonathonSonesen/pytest,Magicjarvis/py,bubenkoff/pytest,pelme/pytest,mdboom/pytest,The-Compiler/pytest,vmalloc/dessert,ionelmc/pytest,doordash/pytest,MichaelAquilina/pytest,Bjwebb/pytest,ddboline/pytest,pelme/pytest,inirudebwoy/pytest,vodik/pytest,jb098/pytest,flub/pytest,nicoddemus/repo-test,codewarrior0/pytest,hpk42/pytest,ojake/pytest,Bachmann1234/pytest,RonnyPfannschmidt/pytest,bukzor/pytest,markshao/pytest,mbirtwell/pytest,bukzor/pytest,untitaker/pytest,jaraco/pytest,jb098/pytest,hackebrot/pytest,lukas-bednar/pytest,codewarrior0/pytest,tomviner/pytest,pytest-dev/py,skylarjhdownes/pytest,rmfitzpatrick/pytest,rouge8/pytest,pytest-dev/pytest,takluyver/pytest,ghostsquad/pytest,wfxiang08/pytest,mhils/pytest,Haibo-Wang-ORG/pytest,tareqalayan/pytest,ojake/pytest,chillbear/pytest,hunse/pytest,etataurov/pytest,omarkohl/pytest,doordash/pytest,davidszotten/pytest,mhils/pytest,ropez/pytest,takluyver/pytest,lukas-bednar/pytest,Carreau/pytest,gabrielcnr/pytest,eli-b/pytest,ghostsquad/pytest,rouge8/pytest,Haibo-Wang-ORG/pytest,The-Compiler/pytest,mdboom/pytest,pfctdayelise/pytest,Bjwebb/pytest,JonathonSonesen/pytest,Carreau/pytest,abusalimov/pytest,ericdill/pytest,chillbear/pytest,abusalimov/pytest,untitaker/pytest,hpk42/pytest,omarkohl/pytest,malinoff/pytest,Akasurde/pytest,chiller/pytest,inirudebwoy/pytest,Bachmann1234/pytest,hunse/pytest,tomviner/pytest,ionelmc/pytest,oleg-alexandrov/pytest,MengJueM/pytest,userzimmermann/pytest,nicoddemus/pytest,MengJueM/pytest,oleg-alexandrov/pytest,alfredodeza/pytest,tgoodlet/pytest,mbirtwell/pytest,nicoddemus/repo-test,txomon/pytest,chiller/pytest