[dart2js] Remove `Symbol.validated`.

Bug: https://github.com/dart-lang/sdk/issues/46397
Fixes: https://github.com/dart-lang/sdk/issues/46397
Change-Id: I307f486deb7afe72c347bfeb6779cb9389d1ff13
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/204601
Reviewed-by: Stephen Adams <sra@google.com>
Commit-Queue: Mayank Patke <fishythefish@google.com>

https://dart.googlesource.com/sdk/+/3405b943389fa0d56fd335361ac3fa861057c52e
1 file changed
tree: 37c1afb794d38767805fa395023b1717b4f4a614
  1. commits.json