Scala IDE now builds again against Scala 2.11.0-SNAPSHOT

With the previous test code, one additional warning was reported
(something like _expression in statement position_). The fix was
to wrap the expression in a `println`.

Failure was introduced in commit SHA: 56e4328e736e5f3aa2e424f741cf80e92e3d1d2b
Merge pull request #409 from dotta/transient/fix-scala-211-build

Scala IDE now builds again against Scala 2.11.0-SNAPSHOT