Add Syzygy support to Windows GN build.

build/config/win/BUILD.gn

Index: build/config/win/BUILD.gn
diff --git a/build/config/win/BUILD.gn b/build/config/win/BUILD.gn
index 261a1ac4defb6b96f74ab3384b152516b55e6e67..7d8688ba373bc7d601a9f19fbdd21923e3dac475 100644
--- a/build/config/win/BUILD.gn
+++ b/build/config/win/BUILD.gn
@@ -2,6 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/win/visual_studio_version.gni")
 
 # Compiler setup for the Windows SDK. Applied to all targets.
@@ -51,7 +52,7 @@ config("sdk_link") {
       "$visual_studio_path\VC\lib",
       "$visual_studio_path\VC\atlmfc\lib",
     ]
-    if (!is_asan) {
+    if (!is_syzyasan) {
       ldflags += [ "/largeaddressaware" ]
     }
   }