@param prefix the prefix with which all returned bindings must start
	 * @param fileScopeOnly if true, only bindings at file scope are returned
	 * @param filter a filter that allows for skipping parts of the index
	 * @param monitor a monitor for progress reporting and cancellation, may be {@code null}
	 * @return an array of bindings with the prefix
	 * @throws CoreException
@param prefix the prefix with which all returned bindings must start
	 * @param fileScopeOnly if true, only bindings at file scope are returned
	 * @param filter a filter that allows for skipping parts of the index
	 * @param monitor a monitor for progress reporting and cancellation, may be {@code null}
	 * @return an array of bindings with the prefix
	 * @throws CoreException | IIndex.java