tree 6497fd7948e316a0a791f61071eb2d9bf569d8a2
parent 3eba235b202b343f217246eb36f97fb4e44d64f1
author Jing Pu <jingpu@google.com> 1565375222 -0700
committer TensorFlower Gardener <gardener@tensorflow.org> 1565376003 -0700

Check "cond" and "body" are defined in tf.While verifier.

This also fix a crash in `condFn.getType()` if the lookupSymbol fails.

PiperOrigin-RevId: 262599229