[JS IR] Do not copy prototype references of FO from super class

Reduce bundle size from issue from 4.9M to 3.4M

 - fix KT-41227
 - add simple test

js/js.translator/testData/box/inheritance/childPrototype.kt

@@ -0,0 +1,32 @@
+// EXPECTED_REACHABLE_NODES: 1251
+
+// KT-41227
+
+var result = ""
+
+open class A {
+    @JsName("foo")
+    fun foo() { result += "A" }
+    @JsName("boo")
+    open fun boo() { result += "FAIL" }
+}
+
+class B : A() {
+    override fun boo() { result += "B" }
+    @JsName("bar")
+    fun bar() { result += "C" }
+}
+
+fun box(): String {
+    val b = B()
+    b.boo()
+    b.foo()
+    b.bar()
+    if (result != "BAC") return "FAIL: $result"
+
+    return "OK"
+}
+
+// PROPERTY_WRITE_COUNT: name=foo count=1
+// PROPERTY_WRITE_COUNT: name=boo count=2
+// PROPERTY_WRITE_COUNT: name=bar count=1