feat(minifier): fold typeof foo == undefined into foo == undefined when possible
#33195
| Job | Run time |
|---|---|
| 2m 31s | |
| 3m 9s | |
| 2m 36s | |
| 1m 18s | |
| 4m 7s | |
| 2m 14s | |
| 0s | |
| 0s | |
| 6s | |
| 4s | |
| 1m 28s | |
| 1m 15s | |
| 18m 48s |