fixed invoke overriden field problem in dynamic and the dynamic's Lyng class.

lynglib/src/commonMain/kotlin/net/sergeych/lyng/obj/ObjDynamic.kt

@@ -49,6 +49,8 @@ class ObjDynamicContext(val delegate: ObjDynamic) : Obj() {
 
 open class ObjDynamic(var readCallback: Statement? = null, var writeCallback: Statement? = null) : Obj() {
 
+    override val objClass: ObjClass = type
+
     override suspend fun readField(scope: Scope, name: String): ObjRecord {
         return readCallback?.execute(scope.createChildScope(Arguments(ObjString(name))))?.let {
             if (writeCallback != null)
@@ -59,6 +61,22 @@ open class ObjDynamic(var readCallback: Statement? = null,var writeCallback: Sta
             ?: super.readField(scope, name)
     }
 
+    override suspend fun invokeInstanceMethod(
+        scope: Scope,
+        name: String,
+        args: Arguments,
+        onNotFoundResult: (() -> Obj?)?
+    ): Obj {
+        val over = readCallback?.execute(
+            scope.createChildScope(
+                Arguments(ObjString(name)
+                )
+            )
+        )
+        return over?.invoke(scope, scope.thisObj, args)
+            ?: super.invokeInstanceMethod(scope, name, args, onNotFoundResult)
+    }
+
     override suspend fun writeField(scope: Scope, name: String, newValue: Obj) {
         writeCallback?.execute(scope.createChildScope(Arguments(ObjString(name), newValue)))
             ?: super.writeField(scope, name, newValue)

lynglib/src/commonTest/kotlin/OOTest.kt

@@ -183,7 +183,7 @@ class OOTest {
             x(1,2,3)
             assertEquals(6, x(1,2,3))
             //               v  HERE    v
-            assertEquals(15, (cc.foo.bar)(10,2,3))
+            assertEquals(15, cc.foo.bar(10,2,3))
        """)
     }
 }