Cull extraneous whitespace.

One last flurry with the broom before I leave you slobs to code
in your own filth. Eliminated all the trailing whitespace I
could manage, with special prejudice reserved for the test cases
which depended on the preservation of trailing whitespace.

Was reminded I cannot figure out how to eliminate the trailing
space on the "scala> " prompt in repl transcripts. At least
reduced the number of such empty prompts by trimming transcript
code on the way in.

Routed ConsoleReporter's "printMessage" through a trailing
whitespace stripping method which might help futureproof
against the future of whitespace diseases. Deleted the up-to-40
lines of trailing whitespace found in various library files.

It seems like only yesterday we performed whitespace surgery
on the whole repo. Clearly it doesn't stick very well. I suggest
it would work better to enforce a few requirements on the way in.

1 files changed, 3 insertions, 3 deletions

diff --git a/test/files/pos/tcpoly_checkkinds_mix.scala b/test/files/pos/tcpoly_checkkinds_mix.scala
index 2d265da6b9..3734405f8b 100644
--- a/test/files/pos/tcpoly_checkkinds_mix.scala
+++ b/test/files/pos/tcpoly_checkkinds_mix.scala
@@ -2,9 +2,9 @@ trait Iterable[A <: Bound[A], Bound[_]] {
   type MyType[x <: Bound[x]] <: Iterable[x, Bound]
   def map[B <: Bound[B]](f: A => B): MyType[B]
   def flatMap[B <: Bound[B]](f: A => MyType[B]): MyType[B]
-  def filter(p: A => Boolean): MyType[A] 
+  def filter(p: A => Boolean): MyType[A]
 }
 
-trait OrderedSet[T <: Ordered[T]] extends Iterable[T, Ordered] { 
+trait OrderedSet[T <: Ordered[T]] extends Iterable[T, Ordered] {
   type MyType[x <: Ordered[x]] = OrderedSet[x]
-} 
+}