Simplify property memoization for Flyweight pattern by replacing it with ??=
#21584
| Job | Run time |
|---|---|
| 3m 20s | |
| 3m 10s | |
| 1m 33s | |
| 1m 44s | |
| 3m 4s | |
| 3m 20s | |
| 1m 50s | |
| 1m 58s | |
| 6m 4s | |
| 12m 22s | |
| 1m 39s | |
| 1m 42s | |
| 2m 57s | |
| 2m 56s | |
| 2m 51s | |
| 1m 37s | |
| 3m 14s | |
| 55m 21s |