fixed #12089 - switched built-in platforms to signed char by default
#21346
| Job | Run time |
|---|---|
| 4m 40s | |
| 8m 50s | |
| 5m 33s | |
| 5m 10s | |
| 7m 52s | |
| 5m 23s | |
| 1m 13s | |
| 2m 16s | |
| 1m 15s | |
| 1m 21s | |
| 1m 13s | |
| 1m 34s | |
| 4m 40s | |
| 9m 9s | |
| 5m 33s | |
| 2m 16s | |
| 1m 21s | |
| 1m 13s | |
| 1m 15s | |
| 1m 13s | |
| 5m 23s | |
| 1m 34s | |
| 7m 52s | |
| 5m 10s | |
| 1h 32m 59s |