Danny Tuppeny
6872a0bb77
Both LSP and legacy server tests had their own implementation of writing package_config files. This combines them by moving the LSP `ConfigurationFilesMixin` mixin to its own file and updating the legacy test classes to use it. This removes a little duplication and avoids adding more for the temporary packages required for Macros that's currently only in the LSP version (but required for some upcoming LSP-over-Legacy tests). Change-Id: Iaa4055c544df4cdd5a0f140b0c6171ff1a406946 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/347081 Reviewed-by: Phil Quitslund <pquitslund@google.com> Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>