Fix neg tests

Author: odersky

tests/neg/i1802.scala

@@ -14,7 +14,7 @@ object Exception {
     def apply(x: Throwable): T = f(downcast(x).get)
   }
 
-  def mkThrowableCatcher[T](isDef: Throwable => Boolean, f: Throwable => T) = mkCatcher(isDef, f) // error: undetermined ClassTag
+  def mkThrowableCatcher[T](isDef: Throwable => Boolean, f: Throwable => T) = mkCatcher(isDef, f)
 
   implicit def throwableSubtypeToCatcher[Ex <: Throwable: ClassTag, T](pf: PartialFunction[Ex, T]) = // error: result type needs to be given
     mkCatcher(pf.isDefinedAt _, pf.apply _) // error: method needs return type

tests/neg/undet-classtag.scala

@@ -3,7 +3,7 @@ import scala.reflect.ClassTag
 object Test {
   def f[T: reflect.ClassTag](x: T) = ???
 
-  f(???) // error: undetermined ClassTag
+  f(???)
 }
 
 // SI 9754
@@ -22,6 +22,6 @@ object Program {
 
 // SI 5353
 object t5353 {
-  if (false) Array("qwe") else Array() // error: undetermined ClassTag
+  if (false) Array("qwe") else Array()
 }