Validate and maybe prune interpreter cache run over run#7225

Merged

CMLivingston merged 5 commits intopantsbuild:masterfrom CMLivingston:clivingston/PY-135

Feb 11, 2019

+72-13

Commits on Feb 6, 2019

Purge stale interpreters from Interpreter Cache
Chris Livingston
committed
Rename purge method to make side effects more clear
Chris Livingston
committed
Do not change whitespace
Chris Livingston
committed

Commits on Feb 7, 2019

Simplify unit test and make jsirois changes
Chris Livingston
committed

Commits on Feb 8, 2019

2nd round of jsirois feedback
Chris Livingston
committed