Serialize OptIn to builtins, improve tests

Skip SOURCE-retention annotations in builtins serialization tests,
because otherwise the source analysis result can't be equal to the
metadata deserialization result.

 #KT-53073 Fixed

compiler/testData/diagnostics/tests/operatorsOverloading/until/simple.kt

@@ -2,7 +2,7 @@
 // !LANGUAGE: +RangeUntilOperator
 
 fun main(n: Int) {
-    for (i in 0..<n) {
+    for (i in 0<!OPT_IN_USAGE_ERROR!>..<<!>n) {
 
     }
-}
+}