Fixed bug with default args copying in enums + test

backend.native/tests/build.gradle

@@ -774,6 +774,11 @@ task switchLowering(type: RunKonanTest) {
     source = "codegen/enum/switchLowering.kt"
 }
 
+task enum_lambdaInDefault(type: RunKonanTest) {
+    goldValue = "Q\n"
+    source = "codegen/enum/lambdaInDefault.kt"
+}
+
 task mangling(type: LinkKonanTest) {
     goldValue = 
         "Int direct [1, 2, 3, 4]\n" +

backend.native/tests/codegen/enum/lambdaInDefault.kt

@@ -0,0 +1,13 @@
+package codegen.enum.lambdaInDefault
+
+import kotlin.test.*
+
+enum class Zzz(val value: String.() -> Int = {
+    length
+}) {
+    Q()
+}
+
+@Test fun runTest() {
+    println(Zzz.Q)
+}