Attempt to fix the asan/win build.

Source/wtf/Atomics.h

Index: Source/wtf/Atomics.h
diff --git a/Source/wtf/Atomics.h b/Source/wtf/Atomics.h
index df9e9750eb5d42035c2ef484a573c6774221195a..fb36bf6fb042a60996f0b929c3fc58b377e696c4 100644
--- a/Source/wtf/Atomics.h
+++ b/Source/wtf/Atomics.h
@@ -187,19 +187,28 @@ ALWAYS_INLINE unsigned acquireLoad(volatile const unsigned* ptr)
 
 #if defined(ADDRESS_SANITIZER)
 
-__attribute__((no_sanitize_address)) ALWAYS_INLINE void asanUnsafeReleaseStore(volatile unsigned* ptr, unsigned value)
+// FIXME: See comment on NO_SANITIZE_ADDRESS in platform/heap/AddressSanitizer.h
+#if !OS(WIN) || COMPILER(CLANG)
+#define NO_SANITIZE_ADDRESS_ATOMICS __attribute__((no_sanitize_address))
+#else
+#define NO_SANITIZE_ADDRESS_ATOMICS
+#endif
+
+NO_SANITIZE_ADDRESS_ATOMICS ALWAYS_INLINE void asanUnsafeReleaseStore(volatile unsigned* ptr, unsigned value)
 {
     MEMORY_BARRIER();
     *ptr = value;
 }
 
-__attribute__((no_sanitize_address)) ALWAYS_INLINE unsigned asanUnsafeAcquireLoad(volatile const unsigned* ptr)
+NO_SANITIZE_ADDRESS_ATOMICS ALWAYS_INLINE unsigned asanUnsafeAcquireLoad(volatile const unsigned* ptr)
 {
     unsigned value = *ptr;
     MEMORY_BARRIER();
     return value;
 }
 
+#undef NO_SANITIZE_ADDRESS_ATOMICS
+
 #endif // defined(ADDRESS_SANITIZER)
 
 #undef MEMORY_BARRIER