deprecating types after colon

compiler/testData/diagnostics/tests/varargs/varargsAndPair.kt

@@ -1,8 +1,10 @@
+// !CHECK_TYPE
+
 fun foo<T: Any>(vararg <!UNUSED_PARAMETER!>ts<!>: T): T? = null
 
 class Pair<A>(<!UNUSED_PARAMETER!>a<!>: A)
 
 fun test() {
     val v = foo(Pair(1))
-    <!TYPE_MISMATCH!>v<!>: Int // check that it is not error type
+    checkSubtype<Int>(<!TYPE_MISMATCH!>v<!>) // check that it is not error type
 }