fix: let token pretty printer handle += and similar token sequences
#13190
| Job | Run time |
|---|---|
| 2m 50s | |
| 1m 24s | |
| 4m 28s | |
| 1m 32s | |
| 1m 22s | |
| 2m 40s | |
| 41s | |
| 1m 13s | |
| 1m 4s | |
| 13s | |
| 2m 27s | |
| 2m 39s | |
| 2m 28s | |
| 1s | |
| 25m 2s |