Enhance bounds for type parameters after loops disconnection

Otherwise behavior might change because enhancement may force computation
for other type parameters in cases like:
class A<X extends Y, Y extends X> {}

See the test:
org.jetbrains.kotlin.checkers.DiagnosticsTestGenerated.Tests.J_k#testRecursiveRawUpperBound3

compiler/testData/foreignAnnotationsJava8/tests/jspecify/defaults.kt

@@ -1,7 +1,7 @@
 // !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_PARAMETER
 // FILE: A.java
 
-import jspecify.annotations.*;
+import org.jspecify.annotations.*;
 
 @DefaultNotNull
 public class A {