Promises: Reorder heap symbols alphabetically

R=littledan@chromium.org

Review-Url: https://codereview.chromium.org/2037943002
Cr-Commit-Position: refs/heads/master@{#36717}

src/heap-symbols.h

@@ -175,13 +175,13 @@
   V(premonomorphic_symbol)                  \
   V(promise_combined_deferred_symbol)       \
   V(promise_debug_marker_symbol)            \
-  V(promise_has_handler_symbol)             \
   V(promise_deferred_reactions_symbol)      \
   V(promise_fulfill_reactions_symbol)       \
-  V(promise_reject_reactions_symbol)        \
+  V(promise_has_handler_symbol)             \
   V(promise_raw_symbol)                     \
-  V(promise_state_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)      \