b44987450e
Also add unsigned value tests for IsUint and MagnitudeIsUint to verify they don't have similar issues. TEST=vm/cc/IsInt, vm/cc/IsUint, vm/cc/MagnitudeIsUint Change-Id: I3c8dcb93b9d019117948bb5c3dac0d1d619931b9 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/333083 Commit-Queue: Tess Strickland <sstrickl@google.com> Reviewed-by: Ryan Macnak <rmacnak@google.com>