Scripting: implement correct disposal of REPL state on finalization

#KT-47927 fixed

libraries/scripting/jvm-host/src/kotlin/script/experimental/jvmhost/jsr223/KotlinJsr223ScriptEngineImpl.kt

@@ -6,6 +6,7 @@
 package kotlin.script.experimental.jvmhost.jsr223
 
 import org.jetbrains.kotlin.cli.common.repl.*
+import java.lang.ref.WeakReference
 import java.util.concurrent.locks.ReentrantReadWriteLock
 import javax.script.ScriptContext
 import javax.script.ScriptEngineFactory
@@ -32,8 +33,9 @@ class KotlinJsr223ScriptEngineImpl(
     private var lastScriptContext: ScriptContext? = null
 
     val jsr223HostConfiguration = ScriptingHostConfiguration(defaultJvmScriptingHostConfiguration) {
+        val weakThis = WeakReference(this@KotlinJsr223ScriptEngineImpl)
         jsr223 {
-            getScriptContext { lastScriptContext ?: getContext() }
+            getScriptContext { weakThis.get()?.let { it.lastScriptContext ?: it.getContext() } }
         }
     }