[FIR][Serialization] Set containingClassForStaticMemberAttr in generateConstructors

plugins/kotlinx-serialization/testData/boxIr/mpp.kt

@@ -0,0 +1,28 @@
+// IGNORE_BACKEND_K1: JVM_IR
+// TARGET_BACKEND: JVM_IR
+// !LANGUAGE: +MultiPlatformProjects
+// WITH_STDLIB
+
+// MODULE: common
+// TARGET_PLATFORM: Common
+// FILE: common.kt
+
+import kotlinx.serialization.*
+
+@Serializable
+class Bar<T>(val t: T)
+
+@Serializable
+class Wrapper(val b: Bar<String>)
+
+// MODULE: jvm()()(common)
+// TARGET_PLATFORM: JVM
+// FILE: main.kt
+
+import kotlinx.serialization.*
+import kotlinx.serialization.json.*
+import kotlinx.serialization.descriptors.*
+
+fun box(): String {
+    return if (Wrapper.serializer().descriptor.elementDescriptors.first().toString() == "Bar(t: kotlin.String)") "OK" else "FAIL"
+}