Fix failing AsyncFunction tests in test262-esnext (#4545)

JerryScript-DCO-1.0-Signed-off-by: Peter Marki marpeter@inf.u-szeged.hu

jerry-core/ecma/builtin-objects/ecma-builtin-async-function.inc.h

@@ -33,9 +33,14 @@ NUMBER_VALUE (LIT_MAGIC_STRING_LENGTH,
 
 /* ECMA-262 v10, 25.7.2.2 */
 OBJECT_VALUE (LIT_MAGIC_STRING_PROTOTYPE,
-              ECMA_BUILTIN_ID_ASYNC_FUNCTION,
+              ECMA_BUILTIN_ID_ASYNC_FUNCTION_PROTOTYPE,
               ECMA_PROPERTY_FIXED)
 
+/* ECMA-262 v11, 25.7.3.2 */
+STRING_VALUE (LIT_GLOBAL_SYMBOL_TO_STRING_TAG,
+              LIT_MAGIC_STRING_ASYNC_FUNCTION_UL,
+              ECMA_PROPERTY_FLAG_CONFIGURABLE)
+
 #endif /* ENABLED (JERRY_ESNEXT) */
 
 #include "ecma-builtin-helpers-macro-undefs.inc.h"

jerry-core/parser/js/byte-code.h

@@ -907,11 +907,11 @@ typedef enum
   /* The following functions cannot be constructed (see CBC_FUNCTION_IS_CONSTRUCTABLE) */
   CBC_FUNCTION_SCRIPT, /**< script (global) function */
   CBC_FUNCTION_GENERATOR, /**< generator function */
-  CBC_FUNCTION_ASYNC, /**< async function */
   CBC_FUNCTION_ASYNC_GENERATOR, /**< async generator function */
 
   /* The following functions has no prototype (see CBC_FUNCTION_HAS_PROTOTYPE) */
   CBC_FUNCTION_ACCESSOR, /**< property accessor function */
+  CBC_FUNCTION_ASYNC, /**< async function */
   CBC_FUNCTION_METHOD, /**< method */
 
   /* The following functions are arrow function (see CBC_FUNCTION_IS_ARROW) */