Fixed operator precedence bug in heap stat recording.

src/global-handles.cc

Index: src/global-handles.cc
diff --git a/src/global-handles.cc b/src/global-handles.cc
index f3b2b0c50cf100db90e3690ea7f4c9a43b32f67d..1a0c982936f7b45e2fd305a1cee75b8e09171c82 100644
--- a/src/global-handles.cc
+++ b/src/global-handles.cc
@@ -436,15 +436,15 @@ void GlobalHandles::RecordStats(HeapStats* stats) {
   *stats->near_death_global_handle_count = 0;
   *stats->destroyed_global_handle_count = 0;
   for (Node* current = head_; current != NULL; current = current->next()) {
-    *stats->global_handle_count++;
+    *stats->global_handle_count += 1;
     if (current->state_ == Node::WEAK) {
-      *stats->weak_global_handle_count++;
+      *stats->weak_global_handle_count += 1;
     } else if (current->state_ == Node::PENDING) {
-      *stats->pending_global_handle_count++;
+      *stats->pending_global_handle_count += 1;
     } else if (current->state_ == Node::NEAR_DEATH) {
-      *stats->near_death_global_handle_count++;
+      *stats->near_death_global_handle_count += 1;
     } else if (current->state_ == Node::DESTROYED) {
-      *stats->destroyed_global_handle_count++;
+      *stats->destroyed_global_handle_count += 1;
     }
   }
 }