Update test file

Updated with SI issues reported by Jason

Author: odersky

tests/neg/undet-classtag.scala

@@ -1,5 +1,27 @@
+import scala.reflect.ClassTag
+
 object Test {
   def f[T: reflect.ClassTag](x: T) = ???
 
   f(???) // error: undetermined ClassTag
 }
+
+// SI 9754
+object Program {
+  def test[T: ClassTag](x: T) = {
+    val arr = new Array[T](1)
+    println(arr.getClass)
+    println(x.getClass)
+    arr(0) = x
+  }
+
+  def main(args: Array[String]): Unit = {
+    test(new Array[Nothing](0)) // error: undetermined ClassTag
+  }
+}
+
+// SI 5353
+object t5353 {
+  if (false) Array("qwe") else Array() // error: undetermined ClassTag
+}
+