JVM IR: Handle nested classes in DelegatedPropertyOptimizer

compiler/testData/codegen/box/delegatedProperty/optimizedDelegatedProperties/kt40815.kt

@@ -0,0 +1,13 @@
+// IGNORE_BACKEND_FIR: JVM_IR
+import kotlin.reflect.KProperty
+
+operator fun Int.provideDelegate(thiz: Any?, property: KProperty<*>): String = property.name
+inline operator fun String.getValue(thiz: Any?, property: KProperty<*>): String = property.name
+
+fun box(): String = with(42) {
+    val O by this
+    O
+} + {
+    val K by ""
+    K
+}()

compiler/testData/codegen/box/delegatedProperty/optimizedDelegatedProperties/kt40815_2.kt

@@ -0,0 +1,7 @@
+import kotlin.reflect.KProperty
+
+inline operator fun String.getValue(thiz: Any?, property: KProperty<*>): String = property.name
+
+fun box(): String = object {
+    val OK by ""
+}.OK

compiler/testData/codegen/box/delegatedProperty/optimizedDelegatedProperties/kt40815_3.kt

@@ -0,0 +1,10 @@
+import kotlin.reflect.KProperty
+
+inline operator fun String.getValue(thiz: Any?, property: KProperty<*>): String = property.name
+
+fun box(): String {
+    class Local {
+        val OK by ""
+    }
+    return Local().OK
+}