Bug 23459 add preference option to turn off variable guessing on method completion
request from Adam
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/ContentAssistPreference.java
} else if (AUTOACTIVATION_DELAY.equals(p)) {
			int delay= store.getInt(AUTOACTIVATION_DELAY);
			assistant.setAutoActivationDelay(delay);
		} else if (PROPOSALS_FOREGROUND.equals(p)) {
			Color c= getColor(store, PROPOSALS_FOREGROUND);
			assistant.setProposalSelectorForeground(c);
		} else if (PROPOSALS_BACKGROUND.equals(p)) {
			Color c= getColor(store, PROPOSALS_BACKGROUND);
			assistant.setProposalSelectorBackground(c);
		} else if (PARAMETERS_FOREGROUND.equals(p)) {
			Color c= getColor(store, PARAMETERS_FOREGROUND);
			assistant.setContextInformationPopupForeground(c);
			assistant.setContextSelectorForeground(c);
		} else if (PARAMETERS_BACKGROUND.equals(p)) {
			Color c= getColor(store, PARAMETERS_BACKGROUND);
			assistant.setContextInformationPopupBackground(c);
			assistant.setContextSelectorBackground(c);
		} else if (AUTOINSERT.equals(p)) {
			boolean enabled= store.getBoolean(AUTOINSERT);
			assistant.enableAutoInsert(enabled);
		}
		
		changeJavaProcessor(assistant, store, p);
		changeJavaDocProcessor(assistant, store, p);
	}
	public static boolean fillArgumentsOnMethodCompletion(IPreferenceStore store) {
		return store.getBoolean(FILL_METHOD_ARGUMENTS);
	}
}