fixed bug with scopes usage

lynglib/src/commonTest/kotlin/ScopePoolingRegressionTest.kt

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2025 Sergey S. Chernov real.sergeych@gmail.com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+import kotlinx.coroutines.test.runTest
+import net.sergeych.lyng.PerfFlags
+import net.sergeych.lyng.eval
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class ScopePoolingRegressionTest {
+
+    @Test
+    fun testPooledScopeInstance() = runTest {
+        val saved = PerfFlags.SCOPE_POOL
+        PerfFlags.SCOPE_POOL = true
+        try {
+            val result = eval("""
+                class A {
+                    fun test() {
+                        // println is a global function
+                        println("Calling println from A")
+                        "method ok"
+                    }
+                }
+                
+                // Use a transient scope (lambda) to create the instance
+                val creator = { A() }
+                val a = creator()
+                
+                // Re-use the pool to ensure the scope used above is reset/repurposed
+                val other = { 1 + 2 }
+                other()
+                other()
+                
+                // Now call method on 'a'. It should still find global 'println'
+                a.test()
+            """.trimIndent())
+            assertEquals("method ok", result.toString())
+        } finally {
+            PerfFlags.SCOPE_POOL = saved
+        }
+    }
+}

lynglib/src/commonTest/kotlin/ScriptTest.kt

@@ -4298,6 +4298,19 @@ class ScriptTest {
         """.trimIndent())
     }
 
+    @Test
+    fun testCached() = runTest {
+        eval("""
+            var counter = 0
+            val f = cached { ++counter }
+             
+            assertEquals(1,f())
+            assertEquals(1, counter)
+            assertEquals(1,f())
+            assertEquals(1, counter)
+        """.trimIndent())
+    }
+
 
 //    @Test
 //    fun testSplatAssignemnt() = runTest {