revert serializer changes until #4236 is addressed

std/haxe/Serializer.hx

@@ -70,7 +70,6 @@ class Serializer {
 
 	var buf : StringBuf;
 	var cache : Array<Dynamic>;
-	var indices : haxe.ds.ObjectMap<Dynamic, Int>;
 	var shash : haxe.ds.StringMap<Int>;
 	var scount : Int;
 
@@ -101,7 +100,6 @@ class Serializer {
 	public function new() {
 		buf = new StringBuf();
 		cache = new Array();
-		indices = new haxe.ds.ObjectMap<Dynamic, Int>();
 		useCache = USE_CACHE;
 		useEnumIndex = USE_ENUM_INDEX;
 		shash = new haxe.ds.StringMap();
@@ -173,9 +171,14 @@ class Serializer {
 	function serializeRef(v) {
 		#if js
 		var vt = untyped __js__("typeof")(v);
+		#end
 		for( i in 0...cache.length ) {
+			#if js
 			var ci = cache[i];
 			if( untyped __js__("typeof")(ci) == vt && ci == v ) {
+			#else
+			if( cache[i] == v ) {
+			#end
 				buf.add("r");
 				buf.add(i);
 				return true;
@@ -183,17 +186,6 @@ class Serializer {
 		}
 		cache.push(v);
 		return false;
-		#else
-		var i:Null<Int> = indices.get(v);
-		if(i == null) {
-			indices.set(v, cache.length);
-			cache.push(v);
-			return false;
-		}
-		buf.add("r");
-		buf.add(i);
-		return true;
-		#end
 	}
 
 	#if flash