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, 6 insertions, 6 deletions

diff --git a/test/files/pos/t2310.scala b/test/files/pos/t2310.scala
index e08411a3df..68912b4961 100644
--- a/test/files/pos/t2310.scala
+++ b/test/files/pos/t2310.scala
@@ -1,15 +1,15 @@
 import scala.Stream._
 
 object consistencyError {
-  /* this gives an error: 
+  /* this gives an error:
   Consistency problem compiling (virtual file)!
   Trying to call method body%1(List(scala.collection.immutable.Stream[A])) with arguments (List(tp2, temp6, temp5))
       case (l #:: ls, rs) => None
                               ^
   scala.tools.nsc.symtab.Types$TypeError: too many arguments for method body%1: (val rs: scala.collection.immutable.Stream[A])None.type
-  
+
   two errors found
-  vss(0) = 
+  vss(0) =
   args = List(tp2, temp6, temp5)
   vss(1) = value rs, value ls, value l
   args = List(tp2, temp6, temp5)
@@ -18,19 +18,19 @@ object consistencyError {
   labels(1) = method body%1
   labels(0) = method body%0
   bx = 1
-  label.tpe = (val rs: scala.collection.immutable.Stream[A])None.type    
+  label.tpe = (val rs: scala.collection.immutable.Stream[A])None.type
   */
   def crash[A](lefts: Stream[A], rights: Stream[A]) = (lefts, rights) match {
     case (Stream.Empty, Stream.Empty) => None
     case (l #:: ls, rs) => None
   }
-  
+
   // These work
   // def works1[A](lefts: Stream[A]) = lefts match {
   //   case Stream.Empty => None
   //   case l #:: ls => None
   // }
-  // 
+  //
   // def works2[A](lefts: Stream[A], rights: Stream[A]) = (lefts, rights) match {
   //   case (Stream.Empty, Stream.Empty) => None
   //   case (ls, rs) => None