private static String mangleDTName(DataType dt) {
		String name = DataTypeUtilities.getNameWithoutConflict(dt);
		return name.replaceAll(" ", "_").replaceAll("\\*", "ptr");
	}
Generate a simple mangled function signature.  Generated string will start with
{@code _func}.
@param functionDefinition function definition is used for generating the name
@return generated name
Ghidra/Features/Base/src/main/java/ghidra/app/util/DataTypeNamingUtil.java