public boolean isConflicted(Variable var1, Variable var2) {
		for (Pair<List<Variable>, List<Variable>> pair : overlappingVariables) {
			if (var1 != null && containsVariable(pair.first, var1)) {
				return true;
			}
			if (var2 != null && containsVariable(pair.second, var2)) {
				return true;
			}
		}
		return false;
	}
Check to see if either var1 or var2 is contained within the conflicted/overlapping
set of variables.  In general, one of the specified variables should be null.
@param var1 a variable which corresponds to function1 at time of construction or null
@param var2 a variable which corresponds to function2 at time of construction or null
@return true if either variable is contained within the conflicted/overlapping
set of variables.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/util/VariableStorageConflicts.java