public HighVariable getHighVariable() {
		return highVariable;
	}
Get the HighVariable associate with this symbol if any.  The symbol may have multiple
partial HighVariables associated with it. This method returns the biggest one, which
may not be the same size as the symbol itself.
@return the associated HighVariable or null
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/HighSymbol.java