Make Date.UTC to conform to the latest ES11 spec (#4250)

Date.UTC should work with only one argument too.

JerryScript-DCO-1.0-Signed-off-by: Csaba Osztrogonác csaba.osztrogonac@h-lab.eu

jerry-core/ecma/builtin-objects/ecma-builtin-date.c

@@ -617,7 +617,13 @@ ecma_builtin_date_utc (ecma_value_t this_arg, /**< this argument */
 {
   JERRY_UNUSED (this_arg);
 
-  if (args_number < 2)
+#if ENABLED (JERRY_ESNEXT)
+  const uint32_t required_args_number = 1;
+#else /* !ENABLED (JERRY_ESNEXT) */
+  const uint32_t required_args_number = 2;
+#endif /* ENABLED (JERRY_ESNEXT) */
+
+  if (args_number < required_args_number)
   {
     /* Note:
      *      When the UTC function is called with fewer than two arguments,

tests/jerry/date-utc.js

@@ -20,9 +20,6 @@ assert (isNaN(d));
 d = Date.UTC({});
 assert (isNaN(d));
 
-d = Date.UTC(2015);
-assert (isNaN(d));
-
 d = Date.UTC(2000 + 15, 0);
 assert (d == 1420070400000);
 

tests/jerry/es5.1/date-utc.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 d = Date.UTC(2015);
+assert (isNaN(d));

tests/test262-esnext-excludelist.xml

@@ -694,7 +694,6 @@
   <test id="built-ins/DataView/toindex-bytelength-sab.js"><reason></reason></test>
   <test id="built-ins/DataView/toindex-byteoffset-sab.js"><reason></reason></test>
   <test id="built-ins/DataView/toindex-byteoffset.js"><reason></reason></test>
-  <test id="built-ins/Date/UTC/return-value.js"><reason></reason></test>
   <test id="built-ins/Date/parse/time-value-maximum-range.js"><reason></reason></test>
   <test id="built-ins/Date/parse/without-utc-offset.js"><reason></reason></test>
   <test id="built-ins/Date/proto-from-ctor-realm-one.js"><reason></reason></test>