deprecating types after colon

compiler/testData/diagnostics/tests/nullabilityAndSmartCasts/kt2176.kt

@@ -1,27 +1,29 @@
+// !CHECK_TYPE
+
 //KT-2176 non-nullability is not inferred after !! or "as"
 package kt2176
 
 fun f1(a: String?) {
     a!!
-    <!DEBUG_INFO_SMARTCAST!>a<!>: String
+    checkSubtype<String>(<!DEBUG_INFO_SMARTCAST!>a<!>)
 }
 
 fun f2(a: String) {
     a<!UNNECESSARY_NOT_NULL_ASSERTION!>!!<!>
-    a: String
+    checkSubtype<String>(a)
 }
 
 fun f3(a: Any?) {
     a as String
-    <!DEBUG_INFO_SMARTCAST!>a<!>: String
+    checkSubtype<String>(<!DEBUG_INFO_SMARTCAST!>a<!>)
 }
 
 fun f4(a: Any) {
     a as String
-    <!DEBUG_INFO_SMARTCAST!>a<!>: String
+    checkSubtype<String>(<!DEBUG_INFO_SMARTCAST!>a<!>)
 }
 
 fun f5(a: String) {
-    a <!USELESS_CAST_STATIC_ASSERT_IS_FINE!>as Any?<!>
-    a: String
+    a <!USELESS_CAST!>as Any?<!>
+    checkSubtype<String>(a)
 }