Avoid constructing RegExp for every BigInt.tryParse

Change-Id: I323089a17b4fa167ac3d660f5313cc1e6873a994
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/118681
Reviewed-by: Leaf Petersen <leafp@google.com>
Commit-Queue: Stephen Adams <sra@google.com>

https://dart.googlesource.com/sdk/+/892fcf2c4586bc00a23c19ddfd8be0064681ad05
1 file changed
tree: 77a25dcd0a5043027bc1f20def1bb530cd357289
  1. commits.json