Minor, move tests on KT-39054 into a subdirectory

compiler/testData/codegen/box/delegatedProperty/delegateToAnother/withSideEffects.kt

@@ -0,0 +1,16 @@
+// WITH_STDLIB
+var result = "Fail"
+
+object O {
+    val z = 42
+    init { result = "OK" }
+}
+
+class A {
+    val x by O::z
+}
+
+fun box(): String {
+    A()
+    return result
+}