private void setupValidSymbolicStackNames(Program program) {
		// figure out what register is used for stack values
		Register stackRegister = getStackRegister();
		if (stackRegister == null) {
			return;
		}

		validSymbolicStackNames.add(stackRegister.getName());
		List<Register> childRegisters = stackRegister.getChildRegisters();
		for (Register register : childRegisters) {
			validSymbolicStackNames.add(register.getName());
		}
	}
Sets up the valid names for stack register based spaces.
  The symbolic stack spaces are named based on the register used to store things
  into the symbolic space.
Ghidra/Features/Base/src/main/java/ghidra/program/util/VarnodeContext.java