event: Don't expose the register.
event: Don't expose the register.

Former-commit-id: 9f434588e582a316fe8d2d0666ade9ed354baad0 [formerly 1472cbf9265b5d75714d37f49f00a100eb812ad1]
Former-commit-id: a14d62244e7dfb7b375d4a62313d2c95f97bd3f5
torhve/ivar2,torhve/ivar2,haste/ivar2,torhve/ivar2