Bug 337231 [Compatibility] Parts need local IPartService implementations
We should use a slave IPartService implementation for parts.
tests/org.eclipse.e4.ui.compat.tests.tweaklet/src/org/eclipse/e4/ui/compat/tests/tweaklet/TestFacadeE4Impl.java
@Override
	public IViewReference[] getFastViews(IWorkbenchPage page) {
		E4Util.unsupported("assertActionSetId");
		return null;
	}
	@Override
	public ArrayList getPerspectivePartIds(IWorkbenchPage page, String folderId) {
		E4Util.unsupported("assertActionSetId");
		return null;
	}
	@Override
	public boolean isFastView(IWorkbenchPage page, IViewReference ref) {
		E4Util.unsupported("assertActionSetId");
		return false;
	}
	@Override
	public void isSlavePageService(IPageService slaveService) {
		E4Util.unsupported("isSlavePageService");
	}
	@Override
	public IContributionItem getFVBContribution(IWorkbenchPage page) {
		E4Util.unsupported("getFVBContribution");
		return null;
	}
	@Override
	public void setFVBTarget(IContributionItem menuContribution,
			IViewReference viewRef) {
		E4Util.unsupported("setFVBTarget");
	}
	@Override