if (value.equals(nullOnSimplePathValue()))
if (value.isNullOnSomePath())
	public IsNullValue downgradeOnControlSplit() {		IsNullValue value = this;				if (NCP_EXTRA_BRANCH) {			// Experimental: track two distinct kinds of "null on complex path" values.			if (value.equals(nullOnSimplePathValue()))				value = nullOnComplexPathValue();			else if (value.equals(nullOnComplexPathValue()))				value = nullOnComplexPathValue3();						} else {			// Downgrade "null on simple path" values to			// "null on complex path".			if (value.equals(nullOnSimplePathValue()))				value = nullOnComplexPathValue();		}		return value;	}