negative-cache symlink status for registerInputsUnderSymlinks
negative-cache symlink status for registerInputsUnderSymlinks

Summary:
A cache existed for this step, but it was only doing positive caching, not
negative caching. This makes the cache almost useless, since most files are not
symlinks, and would be looked up repeatedly.

Reviewed By: marcinkosiba

fbshipit-source-id: 3a7ef75

ilya-klyuchnikov/buck,OkBuilds/buck,sdwilsh/buck,SeleniumHQ/buck,JoelMarcey/buck,brettwooldridge/buck,sdwilsh/buck,facebook/buck,zpao/buck,vschs007/buck,k21/buck,shybovycha/buck,robbertvanginkel/buck,SeleniumHQ/buck,robbertvanginkel/buck,marcinkwiatkowski/buck,facebook/buck,marcinkwiatkowski/buck,robbertvanginkel/buck,davido/buck,rmaz/buck,zhan-xiong/buck,zpao/buck,illicitonion/buck,Addepar/buck,shybovycha/buck,illicitonion/buck,raviagarwal7/buck,JoelMarcey/buck,raviagarwal7/buck,vschs007/buck,sdwilsh/buck,marcinkwiatkowski/buck,clonetwin26/buck,zhan-xiong/buck,zpao/buck,brettwooldridge/buck,nguyentruongtho/buck,Addepar/buck,illicitonion/buck,k21/buck,JoelMarcey/buck,kageiit/buck,vschs007/buck,vschs007/buck,LegNeato/buck,illicitonion/buck,grumpyjames/buck,illicitonion/buck,rmaz/buck,nguyentruongtho/buck,dsyang/buck,robbertvanginkel/buck,shs96c/buck,shs96c/buck,grumpyjames/buck,raviagarwal7/buck,ilya-klyuchnikov/buck,kageiit/buck,janicduplessis/buck,darkforestzero/buck,vschs007/buck,k21/buck,marcinkwiatkowski/buck,k21/buck,vschs007/buck,JoelMarcey/buck,OkBuilds/buck,janicduplessis/buck,janicduplessis/buck,brettwooldridge/buck,romanoid/buck,JoelMarcey/buck,marcinkwiatkowski/buck,shs96c/buck,shs96c/buck,zhan-xiong/buck,robbertvanginkel/buck,shybovycha/buck,sdwilsh/buck,JoelMarcey/buck,ilya-klyuchnikov/buck,marcinkwiatkowski/buck,brettwooldridge/buck,dsyang/buck,rmaz/buck,justinmuller/buck,robbertvanginkel/buck,romanoid/buck,janicduplessis/buck,facebook/buck,daedric/buck,vschs007/buck,k21/buck,OkBuilds/buck,marcinkwiatkowski/buck,shs96c/buck,rmaz/buck,daedric/buck,darkforestzero/buck,Addepar/buck,clonetwin26/buck,darkforestzero/buck,daedric/buck,illicitonion/buck,rmaz/buck,LegNeato/buck,JoelMarcey/buck,justinmuller/buck,shybovycha/buck,raviagarwal7/buck,shybovycha/buck,shybovycha/buck,rmaz/buck,zhan-xiong/buck,daedric/buck,shs96c/buck,romanoid/buck,darkforestzero/buck,romanoid/buck,janicduplessis/buck,LegNeato/buck,kageiit/buck,clonetwin26/buck,zhan-xiong/buck,justinmuller/buck,robbertvanginkel/buck,zhan-xiong/buck,brettwooldridge/buck,justinmuller/buck,sdwilsh/buck,robbertvanginkel/buck,LegNeato/buck,robbertvanginkel/buck,JoelMarcey/buck,daedric/buck,illicitonion/buck,raviagarwal7/buck,janicduplessis/buck,vschs007/buck,davido/buck,marcinkwiatkowski/buck,romanoid/buck,justinmuller/buck,justinmuller/buck,Addepar/buck,sdwilsh/buck,zhan-xiong/buck,LegNeato/buck,clonetwin26/buck,Addepar/buck,k21/buck,davido/buck,OkBuilds/buck,zhan-xiong/buck,SeleniumHQ/buck,rmaz/buck,sdwilsh/buck,clonetwin26/buck,raviagarwal7/buck,davido/buck,rmaz/buck,shybovycha/buck,dsyang/buck,LegNeato/buck,grumpyjames/buck,grumpyjames/buck,illicitonion/buck,illicitonion/buck,justinmuller/buck,vschs007/buck,grumpyjames/buck,zpao/buck,ilya-klyuchnikov/buck,OkBuilds/buck,romanoid/buck,SeleniumHQ/buck,darkforestzero/buck,robbertvanginkel/buck,OkBuilds/buck,grumpyjames/buck,rmaz/buck,shybovycha/buck,grumpyjames/buck,LegNeato/buck,darkforestzero/buck,ilya-klyuchnikov/buck,davido/buck,robbertvanginkel/buck,OkBuilds/buck,janicduplessis/buck,SeleniumHQ/buck,romanoid/buck,justinmuller/buck,nguyentruongtho/buck,darkforestzero/buck,clonetwin26/buck,daedric/buck,davido/buck,kageiit/buck,justinmuller/buck,sdwilsh/buck,shs96c/buck,kageiit/buck,rmaz/buck,SeleniumHQ/buck,marcinkwiatkowski/buck,vschs007/buck,shs96c/buck,kageiit/buck,romanoid/buck,k21/buck,zhan-xiong/buck,clonetwin26/buck,nguyentruongtho/buck,grumpyjames/buck,grumpyjames/buck,sdwilsh/buck,LegNeato/buck,daedric/buck,raviagarwal7/buck,JoelMarcey/buck,brettwooldridge/buck,zhan-xiong/buck,romanoid/buck,justinmuller/buck,shs96c/buck,nguyentruongtho/buck,romanoid/buck,darkforestzero/buck,zpao/buck,nguyentruongtho/buck,brettwooldridge/buck,robbertvanginkel/buck,shybovycha/buck,facebook/buck,dsyang/buck,janicduplessis/buck,k21/buck,facebook/buck,kageiit/buck,dsyang/buck,darkforestzero/buck,raviagarwal7/buck,Addepar/buck,sdwilsh/buck,shybovycha/buck,shs96c/buck,OkBuilds/buck,rmaz/buck,SeleniumHQ/buck,clonetwin26/buck,clonetwin26/buck,vschs007/buck,marcinkwiatkowski/buck,zhan-xiong/buck,davido/buck,dsyang/buck,grumpyjames/buck,k21/buck,marcinkwiatkowski/buck,marcinkwiatkowski/buck,SeleniumHQ/buck,zhan-xiong/buck,ilya-klyuchnikov/buck,daedric/buck,janicduplessis/buck,SeleniumHQ/buck,rmaz/buck,ilya-klyuchnikov/buck,Addepar/buck,raviagarwal7/buck,davido/buck,brettwooldridge/buck,facebook/buck,janicduplessis/buck,dsyang/buck,zpao/buck,Addepar/buck,brettwooldridge/buck,brettwooldridge/buck,zhan-xiong/buck,ilya-klyuchnikov/buck,clonetwin26/buck,daedric/buck,raviagarwal7/buck,sdwilsh/buck,shs96c/buck,clonetwin26/buck,dsyang/buck,justinmuller/buck,k21/buck,grumpyjames/buck,SeleniumHQ/buck,robbertvanginkel/buck,dsyang/buck,darkforestzero/buck,ilya-klyuchnikov/buck,daedric/buck,k21/buck,shs96c/buck,romanoid/buck,davido/buck,romanoid/buck,davido/buck,ilya-klyuchnikov/buck,dsyang/buck,LegNeato/buck,daedric/buck,LegNeato/buck,vschs007/buck,illicitonion/buck,OkBuilds/buck,clonetwin26/buck,illicitonion/buck,daedric/buck,LegNeato/buck,vschs007/buck,OkBuilds/buck,OkBuilds/buck,daedric/buck,darkforestzero/buck,dsyang/buck,illicitonion/buck,shybovycha/buck,JoelMarcey/buck,raviagarwal7/buck,Addepar/buck,illicitonion/buck,Addepar/buck,SeleniumHQ/buck,Addepar/buck,k21/buck,clonetwin26/buck,ilya-klyuchnikov/buck,grumpyjames/buck,shybovycha/buck,rmaz/buck,sdwilsh/buck,zpao/buck,davido/buck,shybovycha/buck,brettwooldridge/buck,davido/buck,k21/buck,darkforestzero/buck,davido/buck,romanoid/buck,OkBuilds/buck,Addepar/buck,brettwooldridge/buck,marcinkwiatkowski/buck,brettwooldridge/buck,LegNeato/buck,dsyang/buck,OkBuilds/buck,SeleniumHQ/buck,SeleniumHQ/buck,facebook/buck,ilya-klyuchnikov/buck,darkforestzero/buck,dsyang/buck,janicduplessis/buck,Addepar/buck,justinmuller/buck,raviagarwal7/buck,JoelMarcey/buck,nguyentruongtho/buck,JoelMarcey/buck,JoelMarcey/buck,shs96c/buck,LegNeato/buck,sdwilsh/buck,ilya-klyuchnikov/buck,justinmuller/buck,janicduplessis/buck,raviagarwal7/buck