Stop profiler on isolate teardown if still running

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index 927989f367f053979a87e6c357433581e1074a0d..617a5ebf5380a2f93e1b440f438ad4c232c5770d 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -1879,6 +1879,10 @@ void Isolate::Deinit() {
     PrintF(stdout, "=== Stress deopt counter: %u\n", stress_deopt_count_);
   }
 
+  if (cpu_profiler_) {
+    cpu_profiler_->DeleteAllProfiles();
+  }
+
   // We must stop the logger before we tear down other components.
   Sampler* sampler = logger_->sampler();
   if (sampler && sampler->IsActive()) sampler->Stop();