24cae8a684
I wrote a test that generates 10,000 lines of code, each containing one violation of `prefer_single_quotes`, computes the fixes for all of the diagnostics, and applies the 20,000 edits, measuring how long the application takes. Before this change the average was 3355.0 ms. After this change the average is 3.8 ms. The change was inspired by Jens. Change-Id: Icd54a81ca3848fd5f0168934f713a7be8caec359 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/425601 Reviewed-by: Samuel Rawlins <srawlins@google.com> Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>