e6ffc0b285
E.g. "var = 42;" now has a different error message than "var default = 42;". Fixes #22553 Change-Id: I58affe988569d8e79190b63f7267b471a1b0ebc8 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/162182 Commit-Queue: Jens Johansen <jensj@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com> Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>