PassManager: fix a small bug with performance measurments

The check for invalidation was wrong, leading to not restore from the snapshot, which can result in wrong measurements.

Author: eeckstein

lib/SILOptimizer/PassManager/PassManager.cpp

@@ -553,7 +553,8 @@ void SILPassManager::runPassOnFunction(unsigned TransIdx, SILFunction *F) {
     // Run it!
     SFT->run();
 
-    if (changeNotifications != SILAnalysis::InvalidationKind::Nothing) {
+    if (CurrentPassHasInvalidated ||
+        changeNotifications != SILAnalysis::InvalidationKind::Nothing) {
       // Pause time measurement while invalidating analysis and restoring the snapshot.
       duration += (std::chrono::system_clock::now() - startTime);