private Symbol getThunkedSymbol(Symbol s) {
		if (s.getSymbolType() != SymbolType.FUNCTION) {
			return null;
		}
		Function f = (Function) s.getObject();
		Function thunkedFunction = f.getThunkedFunction(true);
		return thunkedFunction != null ? thunkedFunction.getSymbol() : null;
	}
Find unique original external symbol with the given name.  
@param name original external symbol name
@return unique external symbol or null if multiple matching external symbols were found
@throws NotFoundException if no original external symbols were found
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/function/ThunkReferenceAddressDialog.java