JS: prohibit declaration names that clash with JS builtin functions

See KT-18095, KT-17475, KT-18105, KT-5259

js/js.translator/testData/box/nameClashes/withBuiltin.kt

@@ -0,0 +1,19 @@
+// EXPECTED_REACHABLE_NODES: 1135
+open class C {
+    private fun constructor() = "C.constructor"
+
+    fun f(): String = constructor()
+}
+
+class D : C()
+
+fun box(): String {
+    val d = D()
+
+    val x = d.f()
+    if (x != "C.constructor") return "fail1: $x"
+
+    if (x.asDynamic().constructor === D::class.js) return "fail2"
+
+    return "OK"
+}