For-loop range expression (collection) can not be null

compiler/testData/codegen/controlStructures/forNullableIntArray.jet

@@ -12,10 +12,5 @@ fun box() : String {
     System.out?.println(sum)
     if(sum != 10) return "b failed"
 
-    val d : Array<Int?>? = null
-    for (el in d) {
-        sum = sum + (el ?: 7)
-    }
-
     return "OK"
 }

compiler/testData/codegen/controlStructures/forPrimitiveIntArray.jet

@@ -10,10 +10,5 @@ fun box() : String {
     }
     if(sum != 10) return "a failed"
 
-    val b : IntArray? = null
-    for (el in b) {
-        sum = sum + el
-    }
-
     return "OK"
 }