Stoppp using trippple consonants

runtime/vm/isolate.h

Index: runtime/vm/isolate.h
diff --git a/runtime/vm/isolate.h b/runtime/vm/isolate.h
index 6f7b05971a7150a8e5564627ebb278423eac7da7..f700bbc2ad2e2c944c3e506be5e297e54c91e171 100644
--- a/runtime/vm/isolate.h
+++ b/runtime/vm/isolate.h
@@ -843,7 +843,7 @@ class Isolate : public BaseIsolate {
   // Used to wake the isolate when it is in the pause event loop.
   Monitor* pause_loop_monitor_;
 
-  // Invalidation generations; used to track events occuring in parallel
+  // Invalidation generations; used to track events occurring in parallel
   // to background compilation. The counters may overflow, which is OK
   // since we check for equality to detect if an event occured.
   intptr_t loading_invalidation_gen_;