[K2/N] Fix property accessors modality in K2 metadata

^KT-56603

native/native.tests/testData/klibContents/property_accessors.kt

@@ -0,0 +1,23 @@
+package test;
+
+abstract class A {
+    abstract val a: Int
+    abstract var b: Int
+        protected set
+    val c: Int = TODO()
+    val d: Int
+        get() = TODO()
+    var e: Int
+        get() = TODO()
+        set(value) = TODO()
+    var f: Int = TODO()
+        private set
+    open val g: Int = TODO()
+    open val h: Int
+        get() = TODO()
+    open var k: Int
+        get() = TODO()
+        set(value) = TODO()
+    open var l: Int = TODO()
+        protected set
+}

native/native.tests/testData/klibContents/property_accessors.txt

@@ -0,0 +1,15 @@
+abstract class A constructor() {
+        abstract val a: Int
+        abstract var b: Int
+            protected set
+        val c: Int
+        val d: Int
+        var e: Int
+        var f: Int
+            private set
+        open val g: Int
+        open val h: Int
+        open var k: Int
+        open var l: Int
+            protected set
+    }