Bug 287139 [CommonNavigator] Add core expression to determine initial activation for NCE
Build ID: 20090619-0625 Steps To Reproduce: Currently, the definition of the Navigator Content Extension via plugin.xml allows to specify the boolean attribute allowByDefault which controls if the contributed content is active by default. It makes sence to change the type of the attribute from boolean to core expression, which will allow to evaluate the default context and show content depending on it. This will ease the control of content and enhance the declarative configuration of CNF and NCEs. More information:
tests/org.eclipse.ui.tests.navigator/src/org/eclipse/ui/tests/navigator/LabelProviderTest.java
}
	public void testNullLabelProviderOverrideNone() throws Exception {
		blankLabelProviderOverride(NONE, NULL, "");
	}
	public void testPlainBlankLabelProviderOverrideNone() throws Exception {
		blankLabelProviderOverride(NONE, BLANK, PLAIN);
	}
	public void testPlainNullLabelProviderOverrideNone() throws Exception {
		blankLabelProviderOverride(NONE, NULL, PLAIN);
	}
	public void testBlankLabelProviderOverride1() throws Exception {
		blankLabelProviderOverride(OVERRIDDEN, BLANK, "");
	}
	public void testNullLabelProviderOverride1() throws Exception {
		blankLabelProviderOverride(OVERRIDDEN, NULL, "");
	}
	public void testPlainBlankLabelProviderOverride1() throws Exception {
		blankLabelProviderOverride(OVERRIDDEN, BLANK, PLAIN);
	}
	public void testPlainNullLabelProviderOverride1() throws Exception {
		blankLabelProviderOverride(OVERRIDDEN, NULL, PLAIN);
	}
	public void testBlankLabelProviderOverride2() throws Exception {
		blankLabelProviderOverride(OVERRIDING, BLANK, "");
	}
	public void testNullLabelProviderOverride2() throws Exception {
		blankLabelProviderOverride(OVERRIDING, NULL, "");
	}
	public void testPlainBlankLabelProviderOverride2() throws Exception {
		blankLabelProviderOverride(OVERRIDING, BLANK, PLAIN);