[builtins] implement JSBuiltinReducer for ArrayIteratorNext()

src/compiler/typer.cc

Index: src/compiler/typer.cc
diff --git a/src/compiler/typer.cc b/src/compiler/typer.cc
index 2f508d336e724400e6ef2df31ba00ea2af1cf0f0..b3c6121d9ba395296ecdcc6da9ca768143f9238d 100644
--- a/src/compiler/typer.cc
+++ b/src/compiler/typer.cc
@@ -1383,6 +1383,15 @@ Type* Typer::Visitor::JSCallFunctionTyper(Type* fun, Typer* t) {
         case kStringIteratorNext:
           return Type::OtherObject();
 
+        case kArrayEntries:
+        case kArrayKeys:
+        case kArrayValues:
+        case kTypedArrayEntries:
+        case kTypedArrayKeys:
+        case kTypedArrayValues:
+        case kArrayIteratorNext:
+          return Type::OtherObject();
+
         // Array functions.
         case kArrayIndexOf:
         case kArrayLastIndexOf: