[promises] update comment about deferred reactions symbol state

src/heap-symbols.h

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_HEAP_SYMBOLS_H_
 #define V8_HEAP_SYMBOLS_H_
 
 #define INTERNALIZED_STRING_LIST(V)                                \
   V(anonymous_string, "anonymous")                                 \
   V(apply_string, "apply")                                         \
@@ skipping 157 matching lines @@
   V(URIError_string, "URIError")                                   \
   V(valueOf_string, "valueOf")                                     \
   V(values_string, "values")                                       \
   V(value_string, "value")                                         \
   V(WeakMap_string, "WeakMap")                                     \
   V(WeakSet_string, "WeakSet")                                     \
   V(weekday_string, "weekday")                                     \
   V(writable_string, "writable")                                   \
   V(year_string, "year")
 
-#define PRIVATE_SYMBOL_LIST(V)              \
-  V(array_iteration_kind_symbol)            \
-  V(array_iterator_next_symbol)             \
-  V(array_iterator_object_symbol)           \
-  V(call_site_frame_array_symbol)           \
-  V(call_site_frame_index_symbol)           \
-  V(class_end_position_symbol)              \
-  V(class_start_position_symbol)            \
-  V(detailed_stack_trace_symbol)            \
-  V(elements_transition_symbol)             \
-  V(error_end_pos_symbol)                   \
-  V(error_script_symbol)                    \
-  V(error_start_pos_symbol)                 \
-  V(frozen_symbol)                          \
-  V(hash_code_symbol)                       \
-  V(home_object_symbol)                     \
-  V(intl_impl_object_symbol)                \
-  V(intl_initialized_marker_symbol)         \
-  V(intl_pattern_symbol)                    \
-  V(intl_resolved_symbol)                   \
-  V(megamorphic_symbol)                     \
-  V(native_context_index_symbol)            \
-  V(nonexistent_symbol)                     \
-  V(nonextensible_symbol)                   \
-  V(normal_ic_symbol)                       \
-  V(not_mapped_symbol)                      \
-  V(premonomorphic_symbol)                  \
-  V(promise_async_stack_id_symbol)          \
-  V(promise_debug_marker_symbol)            \
-  V(promise_deferred_reactions_symbol)      \
-  V(promise_forwarding_handler_symbol)      \
-  V(promise_fulfill_reactions_symbol)       \
-  V(promise_handled_by_symbol)              \
-  V(promise_handled_hint_symbol)            \
-  V(promise_has_handler_symbol)             \
-  V(promise_raw_symbol)                     \
-  V(promise_reject_reactions_symbol)        \
-  V(promise_result_symbol)                  \
-  V(promise_state_symbol)                   \
-  V(sealed_symbol)                          \
-  V(stack_trace_symbol)                     \
-  V(strict_function_transition_symbol)      \
+#define PRIVATE_SYMBOL_LIST(V)         \
+  V(array_iteration_kind_symbol)       \
+  V(array_iterator_next_symbol)        \
+  V(array_iterator_object_symbol)      \
+  V(call_site_frame_array_symbol)      \
+  V(call_site_frame_index_symbol)      \
+  V(class_end_position_symbol)         \
+  V(class_start_position_symbol)       \
+  V(detailed_stack_trace_symbol)       \
+  V(elements_transition_symbol)        \
+  V(error_end_pos_symbol)              \
+  V(error_script_symbol)               \
+  V(error_start_pos_symbol)            \
+  V(frozen_symbol)                     \
+  V(hash_code_symbol)                  \
+  V(home_object_symbol)                \
+  V(intl_impl_object_symbol)           \
+  V(intl_initialized_marker_symbol)    \
+  V(intl_pattern_symbol)               \
+  V(intl_resolved_symbol)              \
+  V(megamorphic_symbol)                \
+  V(native_context_index_symbol)       \
+  V(nonexistent_symbol)                \
+  V(nonextensible_symbol)              \
+  V(normal_ic_symbol)                  \
+  V(not_mapped_symbol)                 \
+  V(premonomorphic_symbol)             \
+  V(promise_async_stack_id_symbol)     \
+  V(promise_debug_marker_symbol)       \
+  V(promise_deferred_reaction_symbol)  \
+  V(promise_forwarding_handler_symbol) \
+  V(promise_fulfill_reactions_symbol)  \
+  V(promise_handled_by_symbol)         \
+  V(promise_handled_hint_symbol)       \
+  V(promise_has_handler_symbol)        \
+  V(promise_raw_symbol)                \
+  V(promise_reject_reactions_symbol)   \
+  V(promise_result_symbol)             \
+  V(promise_state_symbol)              \
+  V(sealed_symbol)                     \
+  V(stack_trace_symbol)                \
+  V(strict_function_transition_symbol) \
   V(uninitialized_symbol)
 
 #define PUBLIC_SYMBOL_LIST(V)                \
   V(iterator_symbol, Symbol.iterator)        \
   V(match_symbol, Symbol.match)              \
   V(replace_symbol, Symbol.replace)          \
   V(search_symbol, Symbol.search)            \
   V(species_symbol, Symbol.species)          \
   V(split_symbol, Symbol.split)              \
   V(to_primitive_symbol, Symbol.toPrimitive) \
   V(unscopables_symbol, Symbol.unscopables)
 
 // Well-Known Symbols are "Public" symbols, which have a bit set which causes
 // them to produce an undefined value when a load results in a failed access
 // check. Because this behaviour is not specified properly as of yet, it only
 // applies to a subset of spec-defined Well-Known Symbols.
 #define WELL_KNOWN_SYMBOL_LIST(V)                           \
   V(has_instance_symbol, Symbol.hasInstance)                \
   V(is_concat_spreadable_symbol, Symbol.isConcatSpreadable) \
   V(to_string_tag_symbol, Symbol.toStringTag)
 
 #endif  // V8_HEAP_SYMBOLS_H_