J2K: Insert !! for expression only if NotNull expected (not for Default nullability)

j2k/testData/fileOrElement/nullability/notNullCast.kt

@@ -1,3 +1,5 @@
+// ERROR: Type mismatch: inferred type is Passenger.PassChild? but Passenger.PassChild was expected
+// ERROR: Type mismatch: inferred type is Passenger.PassChild? but Passenger.PassChild was expected
 class Passenger {
     open class PassParent
 
@@ -16,9 +18,9 @@ class Passenger {
         val pass = provideNullable(1)
         if (1 == 2) {
             assert(pass != null)
-            accept2((pass as PassChild?)!!)
+            accept2(pass as PassChild?)
         }
-        accept2((pass as PassChild?)!!)
+        accept2(pass as PassChild?)
     }
 
     fun accept1(p: PassChild) {