[PATCH 06/16] Use filename as part of the pex cache key as some eggs have the same checksum on their own. This causes issues for different python interpreter versions.
[PATCH 06/16] Use filename as part of the pex cache key as some eggs have the same checksum on their own. This causes issues for different python interpreter versions.

RB_ID=277815

(sapling split of d58d849ecf77312aa22986622daaf083c7823a2b)

WCCCEDU/twitter-commons,VaybhavSharma/commons,abel-von/commons,abel-von/commons,VaybhavSharma/commons,nkhuyu/commons,Yasumoto/commons,cevaris/commons,cevaris/commons,brutkin/commons,abel-von/commons,nkhuyu/commons,abel-von/commons,Yasumoto/commons,pombredanne/commons,brutkin/commons,jsirois/commons,cevaris/commons,Yasumoto/commons,pombredanne/commons,pombredanne/commons,nkhuyu/commons,abel-von/commons,cevaris/commons,brutkin/commons,atollena/commons,WCCCEDU/twitter-commons,cevaris/commons,ericzundel/commons,pombredanne/commons,brutkin/commons,nkhuyu/commons,jsirois/commons,atollena/commons,ericzundel/commons,jsirois/commons,atollena/commons,jsirois/commons,Yasumoto/commons,VaybhavSharma/commons,ericzundel/commons,atollena/commons,brutkin/commons,WCCCEDU/twitter-commons,pombredanne/commons,Yasumoto/commons,WCCCEDU/twitter-commons,nkhuyu/commons,VaybhavSharma/commons,WCCCEDU/twitter-commons,ericzundel/commons,ericzundel/commons,VaybhavSharma/commons,atollena/commons,jsirois/commons