Should fix #417 (Exit status was zero on exceptional exits)

git-svn-id: http://lampsvn.epfl.ch/svn-repos/scala/scala/trunk@13878 5e8d7ff9-d8ef-0310-90f0-a4852d11357a

src/compiler/scala/tools/nsc/MainGenericRunner.scala

@@ -162,17 +162,22 @@ object MainGenericRunner {
           } catch {
             case e: ClassNotFoundException =>
               Console.println(e)
+              exit(1)
             case e: NoSuchMethodException =>
               Console.println(e)
+              exit(1)
             case e: InvocationTargetException =>
               e.getCause.printStackTrace
+              exit(1)
           }
+
         } else {
           try {
             ScriptRunner.runScript(settings, thingToRun, command.arguments)
           } catch {
             case e: SecurityException =>
               Console.println(e)
+              exit(1)
           }
         }
     }

src/compiler/scala/tools/nsc/ScriptRunner.scala

@@ -374,6 +374,7 @@ object ScriptRunner {
     } catch {
       case e:InvocationTargetException =>
         e.getCause.printStackTrace
+        exit(1)
     }
   }