void runParameterizedFeature(SpockExecutionContext context, ParameterizedFeatureChildExecutor childExecutor) throws InterruptedException  {
    throw new UnsupportedOperationException("This runner cannot run parameterized features");
  }
Executes a single Spec. Notifies its supervisor about overall execution
progress and every invocation of Spec code.
Supervisor also determines the error strategy.

@author Peter Niederwieser
spock-core/src/main/java/org/spockframework/runtime/PlatformSpecRunner.java