public MDString getMDString() {
		if ((specialName != null) && specialName.isString()) {
			return specialName.getMDString();
		}
		return null;
	}
Returns the RTTI number:{0-4, or -1 if not an RTTI}
@return int RTTI number:{0-4, or -1 if not an RTTI}
Ghidra/Features/MicrosoftDmang/src/main/java/mdemangler/naming/MDBasicName.java