Support access to protected members within inline functions

compiler/testData/codegen/boxInline/syntheticAccessors/protectedMembersFromSuper.1.kt

@@ -0,0 +1,15 @@
+import test.*
+
+class A: P() {
+    override val FOO: String
+        get() = "fail"
+
+    override fun test(): String {
+        return "fail"
+    }
+}
+
+fun box() : String {
+    val p = P()
+    return p.protectedProp() + p.protectedFun()
+}