joinRuntime before we abort so that if we're running in profile mode we'll get perf maps

src/codegen/entry.cpp

@@ -361,6 +361,7 @@ static void handle_sigint(int signum) {
     // TODO: this should set a flag saying a KeyboardInterrupt is pending.
     // For now, just call abort(), so that we get a traceback at least.
     fprintf(stderr, "SIGINT!\n");
+    joinRuntime();
     abort();
 }