Reland Create JSPromise (patchset #16 id:300001 of https://codereview.chromium.org/2536463002/ )"

src/heap-symbols.h

Index: src/heap-symbols.h
diff --git a/src/heap-symbols.h b/src/heap-symbols.h
index 5fbc964e90e64f32ccae91e6291a0a03ab74d6e7..0eb234a07b37bf3687041f4bdb10ea0bef4afd85 100644
--- a/src/heap-symbols.h
+++ b/src/heap-symbols.h
@@ -210,16 +210,10 @@
   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) \