Simplify property memoization for Flyweight pattern by replacing it with ??=
#21580
| Job | Run time |
|---|---|
| 3m 9s | |
| 3m 9s | |
| 1m 35s | |
| 3m 13s | |
| 1m 37s | |
| 4m 51s | |
| 3m 25s | |
| 1m 37s | |
| 1m 51s | |
| 3m 22s | |
| 1m 38s | |
| 3m 3s | |
| 2m 48s | |
| 9m 48s | |
| 2m 55s | |
| 1m 46s | |
| 1m 38s | |
| 51m 25s |