protected Namespace doGetParentNamespace() {
		Symbol parent = getParentSymbol();
		if (parent != null) {
			return (Namespace) parent.getObject();
		}
		return symbolMgr.getProgram().getGlobalNamespace();
	}
@see ghidra.program.model.symbol.Symbol#setPrimary()
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/symbol/SymbolDB.java