Delete code generators after using them.

This has been leaking memory in the compiler, but it has also been
preventing the dynamic generators destructors from being called.
This can prevent a stream from being flushed properly.


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@665586 13f79535-47bb-0310-9956-ffa450edef68
1 file changed