testrunner: refactored givenACodeSampleToTokenize into SimpleTokenizer and SimpleTokenList / several related cleanups
#14244
| Job | Run time |
|---|---|
| 5m 34s | |
| 4m 9s | |
| 5m 17s | |
| 2m 12s | |
| 4m 1s | |
| 2m 20s | |
| 2m 3s | |
| 1m 50s | |
| 27m 26s |