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/neg/tcpoly_typealias.scala b/test/files/neg/tcpoly_typealias.scala
index 96e9349298..6c7f80cc0b 100644
--- a/test/files/neg/tcpoly_typealias.scala
+++ b/test/files/neg/tcpoly_typealias.scala
@@ -12,7 +12,7 @@ trait A3 {
 
 trait FooCov[+x]
 trait FooCon[-x]
-trait FooBound[+x <: String] 
+trait FooBound[+x <: String]
 
 trait BOk1 extends A {
   type m[+x] = FooCov[x]
@@ -30,8 +30,8 @@ trait BOk4 extends A3 {
   type m[+x] = FooCov[x] // weaker variance
 }
 
-// there are two aspects to check: 
- // does type alias signature (not considering RHS) correspond to abstract type member in super class 
+// there are two aspects to check:
+ // does type alias signature (not considering RHS) correspond to abstract type member in super class
  // does RHS correspond to the type alias sig
 trait BInv extends A{
   type m[x] = FooCov[x] // error: invariant x in alias def