Bug 561740 - disable vmwarerecordinghelper on x64 build. r=ted

build/win32/Makefile.in

@@ -45,8 +45,10 @@ include $(DEPTH)/config/autoconf.mk
 ifdef ENABLE_TESTS
 
 ifdef _MSC_VER
+ifneq ($(OS_TEST),x86_64)
 DIRS += vmwarerecordinghelper
 endif
+endif
 
 DIRS += \
   crashinjectdll \