plugin/fix_mixin library

Mixins

DartFixesMixin
A mixin that can be used when creating a subclass of ServerPlugin and mixing in FixesMixin. This implements the creation of the fixes request based on the assumption that the driver being created is an AnalysisDriver.
FixesMixin
A mixin that can be used when creating a subclass of ServerPlugin to provide most of the implementation for handling fix requests.