Fix JavaScriptEventLoop for Embedded Swift in main toolchain snapshots
#2754
| Job | Run time |
|---|---|
| 20m 50s | |
| 14m 25s | |
| 10m 3s | |
| 2m 54s | |
| 3m 34s | |
| 10m 12s | |
| 9m 45s | |
| 12m 30s | |
| 7m 6s | |
| 16s | |
| 12m 24s | |
| 10m 34s | |
| 39s | |
| 3m 1s | |
| 0s | |
| 0s | |
| 1h 58m 13s |