}
                if (host.startParameterProperties != startParameterProperties) {
                    return "the set of Gradle properties has changed"
                }
                if (host.ignoreInputsInConfigurationCacheTaskGraphWriting != ignoreInputsInConfigurationCacheTaskGraphWriting) {
                    return "the set of ignored configuration inputs has changed"
                }

        def e = thrown(IllegalStateException)
        e.message == 'The value for this property is final and cannot be changed any further.'

        when:
        setToNull(property)

        then:
        def e2 = thrown(IllegalStateException)
        e2.message == 'The value for this property is final and cannot be changed any further.'

        when:
        property.value(someValue())

        then:

		{Name: "GOMODCACHE", Value: cfg.GOMODCACHE, Changed: cfg.GOMODCACHEChanged},
		{Name: "GONOPROXY", Value: cfg.GONOPROXY, Changed: cfg.GONOPROXYChanged},
		{Name: "GONOSUMDB", Value: cfg.GONOSUMDB, Changed: cfg.GONOSUMDBChanged},
		{Name: "GOOS", Value: cfg.Goos, Changed: cfg.Goos != runtime.GOOS},
		{Name: "GOPATH", Value: cfg.BuildContext.GOPATH, Changed: cfg.GOPATHChanged},
		{Name: "GOPRIVATE", Value: cfg.GOPRIVATE},

    private boolean changed;
    private int unnamedPropertyCounter;

    private FilePropertyContainer() {
    }

    public static <T extends TaskFilePropertyBuilder & TaskPropertyRegistration> FilePropertyContainer<T> create() {
        return new FilePropertyContainer<T>();
    }

    public void add(T property) {
        properties.add(property);
        changed = true;
    }

    @Override

                changed = true;
            }
        }

        Versioning versioning = sourceMetadata.getVersioning();
        if ( versioning != null )
        {
            Versioning v = getVersioning();
            if ( v == null )
            {
                v = new Versioning();
                setVersioning( v );
                changed = true;
            }

    rewriter.startOpModification(f);
    bool changed = false;
    for (auto [call_arg, body_arg] :
         llvm::zip(call.getOperation()->getOperands(),
                   f.getBody().front().getArguments())) {
      if (call_arg.getType() != body_arg.getType()) {
        body_arg.setType(call_arg.getType());
        changed = true;
      }
    }
    if (changed) {
      rewriter.finalizeOpModification(f);

	}
	if leaderelection.Changed("leader-elect-retry-period") {
		cfg.LeaderElection.RetryPeriod = o.LeaderElection.RetryPeriod
	}
	if leaderelection.Changed("leader-elect-resource-lock") {
		cfg.LeaderElection.ResourceLock = o.LeaderElection.ResourceLock
	}
	if leaderelection.Changed("leader-elect-resource-name") {
		cfg.LeaderElection.ResourceName = o.LeaderElection.ResourceName
	}
	if leaderelection.Changed("leader-elect-resource-namespace") {

        def removed = target.file("source.txt")
        removed.delete()
        def changed = target.file("dir/another.txt")
        changed << "changed!"

        when:
        gitVcs.populate(target, repoHead, repoSpec)

        then:
        removed.text == "Hello world!"
        changed.text == "Goodbye world!"
    }

    // commit() method seems to leak files

	// the subtrees. It is allowed to mutate s. Return true if something has been changed.
	// +optional
	Structural func(s *Structural) bool
	// NestedValueValidation is called on each NestedValueValidation node in the schema,
	// before recursing into subtrees. It is allowed to mutate vv. Return true if something
	// has been changed.
	// +optional
	NestedValueValidation func(vv *NestedValueValidation) bool
}

  bool changed = false;
  // Map each of the results of the call to the returned type of the
  // function.
  for (auto result :
       zip(op->getResults(), func.getFunctionType().getResults())) {
    changed = RefineResultType(op, std::get<0>(result), std::get<1>(result)) ||
              changed;
  }
  DCOMMENT(" - call " << func.getName() << "changed ? " << changed << "\n");