IR KT-46578 add IrProperty#overriddenSymbols

compiler/testData/ir/irText/expressions/protectedJavaFieldRef.kt

@@ -0,0 +1,16 @@
+// SKIP_KT_DUMP
+// FILE: protectedJavaFieldRef.kt
+import p.*
+
+class Derived : Base() {
+    init { j = "" }
+    fun set() { j = "OK" }
+    val ref = ::j
+}
+
+// FILE: p/Base.java
+package p;
+
+public class Base {
+    protected String j;
+}