Fix unit tests by proper usage of PluginConfig

Adapt test code to the new PluginConfig class which is now split into
mutable and immutable parts and it is implemented as an AutoValue
(breaking change: I47bd35d50dae07aa2afd4862b998a4ae94454150).

Bug: Issue 13229
Change-Id: Ib64cc38161adc08028f6b1b9c9cf48e462d8187f
1 file changed
tree: f65ee4104039e67973cb9066b3a09b0477ed9517
  1. src/
  2. BUILD
  3. external_plugin_deps.bzl