scala/scala — pull request #1934 by retronym (2013-01-19 22:11:39+00:00)
Title: Addressing warnings.

- SI-6923 uncovered a few valid warnings, these have been
addressed.
- A pair of "catches all throwable" warnings appeared; one
of the is spurious and the subject of SI-6994.

Review by @JamesIry. What's your opinion on the spuriosity of the following?

```
scala> (x => x): (Any => Unit)
:8: warning: a pure expression does nothing in statement position; you may be omitting necessary parentheses
(x => x): (Any => Unit)
^
```