Fix compilation on Windows after r16284

src/circular-queue.h

Index: src/circular-queue.h
diff --git a/src/circular-queue.h b/src/circular-queue.h
index 3ecba1fea1dec986136d43ab7913ec0e28cf9de0..efbacd5b70380cf422436e720797f0fac3ced337 100644
--- a/src/circular-queue.h
+++ b/src/circular-queue.h
@@ -79,8 +79,8 @@ class SamplingCircularQueue {
   Entry* Next(Entry* entry);
 
   Entry buffer_[Length];
-  Entry* enqueue_pos_ V8_ALIGNAS(PROCESSOR_CACHE_LINE_SIZE);
-  Entry* dequeue_pos_ V8_ALIGNAS(PROCESSOR_CACHE_LINE_SIZE);
+  V8_ALIGNAS(PROCESSOR_CACHE_LINE_SIZE) Entry* enqueue_pos_;
+  V8_ALIGNAS(PROCESSOR_CACHE_LINE_SIZE) Entry* dequeue_pos_;
 
   DISALLOW_COPY_AND_ASSIGN(SamplingCircularQueue);
 };