Updates the simplification of moving constat operands of comparisons to the right to correctly use the strictly swapped operand rather than the negated operand.
Also change the `flipOperands` function to a `swapped` getter to avoid confusion and be clearer that it returns a new value, rather than changing the current one. This better aligns with the Effective Dart guidelines for when to use a getter and how to name them.
TEST=pkg/cfg/testcases/simplification.dart
Change-Id: Id2c19b7cfcbc1586413251b2b9d6d54abcf590c0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/509840
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Slava Egorov <vegorov@google.com>
Commit-Queue: Slava Egorov <vegorov@google.com>
Parker Lougheed
95b8f52f9f