scala/scala — pull request #3689 by xeno-by (2014-04-21 20:39:27+00:00)
Title: makes bundles friendly to -Ywarn-dead-code

Apparently, the `new Bundle(???).impl` synthetic tree generated as a
macro impl ref for bundles evokes -Ywarn-dead-code warnings.

This pull requests changes `???` to `null` in order not to stress out
the checker. What's in the argument doesn't actually make any difference
anyway.