Don't fix a type variable into the intersection type if there is an explicit expected type

^KT-43303 Fixed
^KT-42396 Fixed
^KT-42472 Fixed

compiler/testData/codegen/box/elvis/ofNonNullableResultType.kt

@@ -2,6 +2,6 @@ fun <T> f(): T? = "OK" as? T
 
 fun g(): Nothing = throw RuntimeException("fail")
 
-fun <T : Any> h(): T = run { f() } ?: run { g() }
+fun <T : Any> h(): T = run<T?> { f() } ?: run { g() }
 
 fun box(): String = h<String>()