feat(minifier): fold typeof foo == undefined into foo == undefined when possible
#33218
| Job | Run time |
|---|---|
| 1m 34s | |
| 1m 39s | |
| 0s | |
| 1m 32s | |
| 0s | |
| 11s | |
| 3m 26s | |
| 48s | |
| 1m 19s | |
| 59s | |
| 1m 11s | |
| 6s | |
| 12m 45s |