scala/scala — pull request #3143 by retronym (2013-11-14 19:08:27+00:00)
Title: Revert "temporarily disables run/reflection-sync-subtypes"

This reverts commit 04e2dbb29830d0e511cdfa8c132a9fad91d657ed,
by avoiding the ill-fated attempt to short-circuit the global
reflection lock.

I think we can do better performance wise, but lets at least
get something correct to start with.

Review by @xeno-by