[+0-all-args] Update tryDynamicCastNSErrorToValue for +0 all arguments.

Author: gottesmm

stdlib/public/runtime/ErrorObject.mm

@@ -521,7 +521,7 @@ bool BridgeFn(NSError *, OpaqueValue*, const Metadata *,
 
   // If so, attempt the bridge.
   NSError *srcInstance = *reinterpret_cast<NSError * const*>(src);
-  objc_retain(srcInstance);
+  SWIFT_CC_PLUSONE_GUARD(objc_retain(srcInstance));
   if (bridgeNSErrorToError(srcInstance, dest, destType, witness)) {
     if (flags & DynamicCastFlags::TakeOnSuccess)
       objc_release(srcInstance);