Partial mocking static method calls with Ignore & Demand don't work as expected.

When defining a mockFor on a class with static methods, if you ignore a method which invokes a demand mocked method. The demand is not intercepted.

Here is an example modified from the MockFor documentation:

import groovy.mock.interceptor.MockFor

class Person {
  static def ignoreMe(foo) { foo }
  static def ignoreMeToo() { ignoreMe('foo') }
  static def ignoreMeThree() { ignoreMe('foo') }
}

def mock = new MockFor(Person)
mock.ignore('ignoreMeToo')
mock.ignore('ignoreMeThree')
mock.demand.ignoreMe { s -> 'baz' }

mock.use {
  assert Person.ignoreMe('foo') == 'baz'
  assert Person.ignoreMeToo() == 'baz'
  assert Person.ignoreMeThree() == 'baz'
}

Running this will result in a failure as Person.ignoreMeToo() returns `foo` instead of `baz`.

Use Case: Mocking nested static method calls. I want to test a particular method. I know/expect that method to invoke another static method on the same class, but I want to mock that one, and return an expected value.