tree da03c9fecbbda6002f79ce7d6189fc28fcf076fa
parent 4129636e6c57db8b71e882982a0158c7dacd908c
author Paul Berry <paulberry@google.com> 1601303774 +0000
committer Paul Berry <paulberry@google.com> 1601303774 +0000

Generate an error if writing to a potentially-already-assigned final var.

Change-Id: Iee4dccbc2c11290cdf56b3a95259f6401a123620
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/164246
Reviewed-by: Johnni Winther <johnniwinther@google.com>