public static boolean hasDWARFRegisterMapping(Language lang) throws IOException {
		return DWARFUtil.getLanguageExternalFile(lang, DWARF_REGISTER_MAPPING_NAME) != null;
	}
Returns true if the specified {@link Language} has DWARF register
mappings.

@param lang The {@link Language} to test
@return true if the language has a DWARF register mapping specified
@throws IOException if there was an error in the language LDEF file.
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DWARFRegisterMappingsManager.java