Remove "arguments" and "caller" from specific functions (#3918)

As stated in ES 16.1, "arguments" and "caller" must not be created in:
- strict functions created using the Function constructor
- generator functions created using the Generator constructor
- async functions created using the AsyncFunction constructor
- functions created using the bind

JerryScript-DCO-1.0-Signed-off-by: Rafal Walczyna r.walczyna@samsung.com

jerry-core/ecma/operations/ecma-function-object.c

@@ -1563,7 +1563,7 @@ ecma_op_function_try_to_lazy_instantiate_property (ecma_object_t *object_p, /**<
 
 #if ENABLED (JERRY_ESNEXT)
     if (!(bytecode_data_p->status_flags & CBC_CODE_FLAGS_STRICT_MODE)
-        && !(CBC_FUNCTION_GET_TYPE (bytecode_data_p->status_flags) == CBC_FUNCTION_ARROW))
+        && CBC_FUNCTION_GET_TYPE (bytecode_data_p->status_flags) == CBC_FUNCTION_NORMAL)
     {
       ecma_property_t *value_prop_p;
       /* The property_name_p argument contains the name. */
@@ -1692,6 +1692,7 @@ ecma_op_bound_function_try_to_lazy_instantiate_property (ecma_object_t *object_p
     return len_prop_p;
   }
 
+#if !ENABLED (JERRY_ESNEXT)
   if (ecma_compare_ecma_string_to_magic_id (property_name_p, LIT_MAGIC_STRING_CALLER)
       || ecma_compare_ecma_string_to_magic_id (property_name_p, LIT_MAGIC_STRING_ARGUMENTS))
   {
@@ -1707,6 +1708,7 @@ ecma_op_bound_function_try_to_lazy_instantiate_property (ecma_object_t *object_p
                                          &caller_prop_p);
     return caller_prop_p;
   }
+#endif /* !ENABLED (JERRY_ESNEXT) */
 
   return NULL;
 } /* ecma_op_bound_function_try_to_lazy_instantiate_property */

jerry-core/parser/js/js-lexer.c

@@ -3379,6 +3379,7 @@ lexer_string_is_directive (parser_context_t *context_p) /**< context */
 {
   return (context_p->token.type == LEXER_SEMICOLON
           || context_p->token.type == LEXER_RIGHT_BRACE
+          || context_p->token.type == LEXER_EOS
           || ((context_p->token.flags & LEXER_WAS_NEWLINE)
               && !LEXER_IS_BINARY_OP_TOKEN (context_p->token.type)
               && context_p->token.type != LEXER_LEFT_PAREN