@param linkageID the id of the linkage in which the file has been parsed.
	 * @param location the IIndexFileLocation representing the location of the file
	 * @return the files for the location and the linkage.
	 * @throws CoreException
	 * @since 5.4
@param linkageID the id of the linkage in which the file has been parsed.
	 * @param location the IIndexFileLocation representing the location of the file
	 * @return the files for the location and the linkage.
	 * @throws CoreException
	 * @since 5.4 | IIndex.java