Reorganized BasicBlocks a bit:

 - they are now Seq[Instruction]
 - all booleans have been packed into an int
 - removed non-standard iteration methods, and switched to Seq methods.

1 files changed, 5 insertions, 4 deletions

diff --git a/src/compiler/scala/tools/nsc/backend/icode/Checkers.scala b/src/compiler/scala/tools/nsc/backend/icode/Checkers.scala
index c311be4aad..c42c0536f4 100644
--- a/src/compiler/scala/tools/nsc/backend/icode/Checkers.scala
+++ b/src/compiler/scala/tools/nsc/backend/icode/Checkers.scala
@@ -178,7 +178,7 @@ abstract class Checkers {
         error(" expected: " + k1 + " but " + k2 + " found")
       }
 
-      b traverse (instr => {
+      for (instr <- b) {
 
         def checkStack(len: Int) {
           if (stack.length < len)
@@ -557,7 +557,7 @@ abstract class Checkers {
           case _ =>
             abort("Unknown instruction: " + instr)
         }
-      });
+      }
       stack
     }
 
@@ -575,11 +575,12 @@ abstract class Checkers {
       var printed = 0
       var buf: List[Instruction] = Nil
 
-      basicBlock.traverseBackwards( (i) =>
+      for (i <- basicBlock.reverse) {
         if (i == instruction || (printed > 0 && printed < 3)) {
           buf = i :: buf
           printed += 1
-        });
+        }
+      }
       buf foreach Console.println
       Console.println("at: " + (buf.head.pos))
     }