Add string iterator to ecma_object_check_class_name_is_object function (#3113)

Fixes #3112

JerryScript-DCO-1.0-Signed-off-by: Daniel Balla dballa@inf.u-szeged.hu

jerry-core/ecma/operations/ecma-objects.c

@@ -2168,6 +2168,7 @@ ecma_object_check_class_name_is_object (ecma_object_t *obj_p) /**< object */
 #if ENABLED (JERRY_ES2015_BUILTIN_ITERATOR)
           || ecma_builtin_is (obj_p, ECMA_BUILTIN_ID_ARRAY_ITERATOR_PROTOTYPE)
           || ecma_builtin_is (obj_p, ECMA_BUILTIN_ID_ITERATOR_PROTOTYPE)
+          || ecma_builtin_is (obj_p, ECMA_BUILTIN_ID_STRING_ITERATOR_PROTOTYPE)
 #endif /* ENABLED (JERRY_ES2015_BUILTIN_ITERATOR) */
 #if ENABLED (JERRY_ES2015_BUILTIN_MAP)
           || ecma_builtin_is (obj_p, ECMA_BUILTIN_ID_MAP_PROTOTYPE)

tests/jerry/fail/regression-test-issue-3112.js

@@ -0,0 +1,16 @@
+// Copyright JS Foundation and other contributors, http://js.foundation
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+var iter = "" [ Symbol.iterator ] ( );
+iter.next.constructor ( Object.getPrototypeOf( iter ) )