a4dfaeb51c
This is needed, for example, when renaming an optional named parameter when a simple 'renameParameter' isn't sufficient. The existing arguments need to be preserved. This also removes the 'statements' style of code template because it wasn't fully supported and isn't currently needed. Change-Id: I66035c88fcffef77f7de9eedff4efbaf2720ccb1 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/174482 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>