Bug 327044 EPartService's hidePart(*) should unset the part's parent element if the part is the selected element
It is not valid to have a selected element that's TBR flag is 'false'.
tests/org.eclipse.e4.ui.tests/src/org/eclipse/e4/ui/tests/application/EPartServiceTest.java
public void testSaveAll_CC_False_TT_TT() {
		testSaveAll(new Save[] { Save.CANCEL, Save.CANCEL }, false,
				new boolean[] { true, true }, new boolean[] { true, true });
	}
	public void testSaveAll_CC_False_TT_TF() {
		testSaveAll(new Save[] { Save.CANCEL, Save.CANCEL }, false,
				new boolean[] { true, true }, new boolean[] { true, false });
	}
	public void testSaveAll_CC_False_TT_FT() {
		testSaveAll(new Save[] { Save.CANCEL, Save.CANCEL }, false,
				new boolean[] { true, true }, new boolean[] { false, true });
	}
	public void testSaveAll_CC_False_TF_TT() {
		testSaveAll(new Save[] { Save.CANCEL, Save.CANCEL }, false,
				new boolean[] { true, false }, new boolean[] { true, true });
	}
	public void testSaveAll_CC_False_TF_TF() {
		testSaveAll(new Save[] { Save.CANCEL, Save.CANCEL }, false,
				new boolean[] { true, false }, new boolean[] { true, false });
	}
	public void testSaveAll_CC_False_TF_FT() {
		testSaveAll(new Save[] { Save.CANCEL, Save.CANCEL }, false,
				new boolean[] { true, false }, new boolean[] { false, true });
	}
	public void testSaveAll_CC_False_TF_FF() {
		testSaveAll(new Save[] { Save.CANCEL, Save.CANCEL }, false,
				new boolean[] { true, false }, new boolean[] { false, false });
	}
	public void testSaveAll_CC_False_FT_TT() {
		testSaveAll(new Save[] { Save.CANCEL, Save.CANCEL }, false,