Bug 33216 Source actions in context menu on types inconsistency
1) select a type in the package explorer 2) bring up the context menu ->the source actions are shown in-line and the menu is huge. Given that we show a source submenu in other parts (e.g. the editor) and do the same for the refactoring actions we should also move the source actions into a submenu.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaOutlinePage.java
else
			fActions.put(actionID, action);
	}
	
	public IAction getAction(String actionID) {
		Assert.isNotNull(actionID);
		return (IAction) fActions.get(actionID);
	}
	/**
	 * Answer the property defined by key.
	 */
	public Object getAdapter(Class key) {
		if (key == IShowInSource.class) {
			return getShowInSource();
		}
		if (key == IShowInTargetList.class) {
			return new IShowInTargetList() {
				public String[] getShowInTargetIds() {
					return new String[] { JavaUI.ID_PACKAGES };
				}
			};
		}
		if (key == IShowInTarget.class) {
			return getShowInTarget();
		}
		return null;
	}
	/**
	 * Convenience method to add the action installed under the given actionID to the
	 * specified group of the menu.