Bug 62896 [misc] Quick Outline should not show override indicators if decorator disabled
I20040519 The quick outline shows override indicators no matter whether the Override indicator decorator is enabled in the prefs or not. We should only install the decorator if the prefs says so since this is a performance saver.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/JavaOutlineInformationControl.java
}
				ITypeHierarchy hierarchy= getSuperTypeHierarchy(type);
				if (hierarchy != null) {
					if (Flags.isInterface(hierarchy.getCachedFlags((IType) element))) {
						return INTERFACE;
					} else {
						return CLASS;
					}
				}
			}
			return OTHER;
		}
		private int compareInHierarchy(ITypeHierarchy hierarchy, IType def1, IType def2) {
			if (isSuperType(hierarchy, def1, def2)) {
				return 1;
			} else if (isSuperType(hierarchy, def2, def1)) {
				return -1;
			}
			
			int flags1= hierarchy.getCachedFlags(def1);
			int flags2= hierarchy.getCachedFlags(def2);
			if (Flags.isInterface(flags1)) {
				if (!Flags.isInterface(flags2)) {
					return 1;
				}
			} else if (Flags.isInterface(flags2)) {
				return -1;
			}
			String name1= def1.getElementName();
			String name2= def2.getElementName();