Add correct linker symbols fot tls for win64.

syzygy/integration_tests/deferred_free_tests.cc

Index: syzygy/integration_tests/deferred_free_tests.cc
diff --git a/syzygy/integration_tests/deferred_free_tests.cc b/syzygy/integration_tests/deferred_free_tests.cc
index 08ed18bb076798bb03e03c86b4e03bae18954331..5cbe50467b2e2ec93db5d28ce0290ab088fc5279 100644
--- a/syzygy/integration_tests/deferred_free_tests.cc
+++ b/syzygy/integration_tests/deferred_free_tests.cc
@@ -51,11 +51,27 @@ void NTAPI TlsCallback(PVOID, DWORD dwReason, PVOID) {
 }
 
 // Magic to set the TLS callback.
+#ifdef _WIN64
+#pragma comment(linker, "/INCLUDE:_tls_used")
+#pragma comment(linker, "/INCLUDE:tls_callback_func")
+#else
 #pragma comment(linker, "/INCLUDE:__tls_used")
 #pragma comment(linker, "/INCLUDE:_tls_callback_func")
+#endif
+
+#ifdef _WIN64
+#pragma const_seg(".CRT$XLF")
+#else
 #pragma data_seg(".CRT$XLF")
+#endif
+
 EXTERN_C PIMAGE_TLS_CALLBACK tls_callback_func = TlsCallback;
+
+#ifdef _WIN64
+#pragma const_seg()
+#else
 #pragma data_seg()
+#endif  //_WIN64
 
 }  // namespace