Tokenizer: moved test-only tokenize() to SimpleTokenizer / several cleanups
#14787
| Job | Run time |
|---|---|
| 5m 59s | |
| 2m 49s | |
| 6m 20s | |
| 3m 36s | |
| 5m 33s | |
| 3m 8s | |
| 7m 16s | |
| 1m 46s | |
| 36m 27s |