88575a3f4c
1. Move error checking before. 2. Remove check for operator using resolution, because there is no resolution for dynamic target. _toBinaryOperatorTokenType() will throw if the operatorName is not actually the name of an operator. R=brianwilkerson@google.com, paulberry@google.com Bug: Change-Id: Iaa7d909ec8a6c13f306fd73122a10a0de170e7e1 Reviewed-on: https://dart-review.googlesource.com/29181 Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Commit-Queue: Konstantin Shcheglov <scheglov@google.com>