Improved last_relative_application_frame timings
Improved last_relative_application_frame timings

The previous setup wasn't exactly fast, resulting in instrumented method
calls taking about 600 times longer than non instrumented calls
(including any ActiveSupport code involved). With this commit this
slowdown has been reduced to around 185 times.

axilleas/gitlabhq,axilleas/gitlabhq,allysonbarros/gitlabhq,stoplightio/gitlabhq,SVArago/gitlabhq,dreampet/gitlab,screenpages/gitlabhq,t-zuehlsdorff/gitlabhq,dwrensha/gitlabhq,SVArago/gitlabhq,t-zuehlsdorff/gitlabhq,SVArago/gitlabhq,Soullivaneuh/gitlabhq,iiet/iiet-git,mr-dxdy/gitlabhq,jirutka/gitlabhq,ttasanen/gitlabhq,axilleas/gitlabhq,mmkassem/gitlabhq,martijnvermaat/gitlabhq,t-zuehlsdorff/gitlabhq,ttasanen/gitlabhq,icedwater/gitlabhq,Soullivaneuh/gitlabhq,larryli/gitlabhq,dreampet/gitlab,mr-dxdy/gitlabhq,Datacom/gitlabhq,htve/GitlabForChinese,mr-dxdy/gitlabhq,jrjang/gitlabhq,screenpages/gitlabhq,daiyu/gitlab-zh,daiyu/gitlab-zh,jrjang/gitlab-ce,iiet/iiet-git,htve/GitlabForChinese,mrb/gitlabhq,dplarson/gitlabhq,openwide-java/gitlabhq,shinexiao/gitlabhq,Datacom/gitlabhq,iiet/iiet-git,Soullivaneuh/gitlabhq,yatish27/gitlabhq,LUMC/gitlabhq,dplarson/gitlabhq,yatish27/gitlabhq,jrjang/gitlabhq,ttasanen/gitlabhq,koreamic/gitlabhq,mrb/gitlabhq,dreampet/gitlab,shinexiao/gitlabhq,stoplightio/gitlabhq,martijnvermaat/gitlabhq,dplarson/gitlabhq,dreampet/gitlab,allysonbarros/gitlabhq,mrb/gitlabhq,iiet/iiet-git,ttasanen/gitlabhq,daiyu/gitlab-zh,htve/GitlabForChinese,duduribeiro/gitlabhq,koreamic/gitlabhq,openwide-java/gitlabhq,larryli/gitlabhq,Datacom/gitlabhq,mr-dxdy/gitlabhq,larryli/gitlabhq,jrjang/gitlabhq,yatish27/gitlabhq,screenpages/gitlabhq,koreamic/gitlabhq,dplarson/gitlabhq,stoplightio/gitlabhq,Soullivaneuh/gitlabhq,daiyu/gitlab-zh,screenpages/gitlabhq,jrjang/gitlab-ce,martijnvermaat/gitlabhq,axilleas/gitlabhq,duduribeiro/gitlabhq,darkrasid/gitlabhq,icedwater/gitlabhq,darkrasid/gitlabhq,SVArago/gitlabhq,darkrasid/gitlabhq,jirutka/gitlabhq,mrb/gitlabhq,LUMC/gitlabhq,jirutka/gitlabhq,mmkassem/gitlabhq,icedwater/gitlabhq,jirutka/gitlabhq,mmkassem/gitlabhq,dwrensha/gitlabhq,stoplightio/gitlabhq,LUMC/gitlabhq,dwrensha/gitlabhq,icedwater/gitlabhq,jrjang/gitlab-ce,darkrasid/gitlabhq,allysonbarros/gitlabhq,shinexiao/gitlabhq,shinexiao/gitlabhq,koreamic/gitlabhq,t-zuehlsdorff/gitlabhq,dwrensha/gitlabhq,jrjang/gitlabhq,Datacom/gitlabhq,martijnvermaat/gitlabhq,duduribeiro/gitlabhq,larryli/gitlabhq,openwide-java/gitlabhq,duduribeiro/gitlabhq,mmkassem/gitlabhq,openwide-java/gitlabhq,jrjang/gitlab-ce,allysonbarros/gitlabhq,LUMC/gitlabhq,yatish27/gitlabhq,htve/GitlabForChinese