Fix lib\support\Windows/TimeValue.inc(48): warning C4189:

'Error' : local variable is initialized but not referenced.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234982 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Support/Windows/TimeValue.inc

@@ -47,6 +47,7 @@ std::string TimeValue::str() const {
   __time64_t OurTime = this->toEpochTime();
   int Error = ::_localtime64_s(&Storage, &OurTime);
   assert(!Error);
+  (void)Error;
   LT = &Storage;
 #endif