private static Variable getLocalVariable(Function function, VariableStorage storage,
			Address pcAddr) {

		if (storage.isHashStorage()) {

			long hashVal = storage.getFirstVarnode().getOffset();
			for (Variable ul : function.getLocalVariables(VariableFilter.UNIQUE_VARIABLE_FILTER)) {
				// Note: assumes there is only one hash method used for unique locals
				if (ul.getFirstStorageVarnode().getOffset() == hashVal) {
					return ul;
				}
			}
			return null;
		}

		int firstUseOffset = 0;
		if (pcAddr != null) {
			firstUseOffset = (int) pcAddr.subtract(function.getEntryPoint());
		}

		for (Variable otherVar : function.getLocalVariables()) {
			if (otherVar.getFirstUseOffset() != firstUseOffset) {
				// other than parameters we will have a hard time identifying
				// local variable conflicts due to differences in scope (i.e., first-use)
				continue;
			}

			VariableStorage otherStorage = otherVar.getVariableStorage();
			if (otherStorage.intersects(storage)) {
				if (otherStorage.equals(storage)) {
					return otherVar;
				}
			}
		}

		return null;
	}
Given a particular seed Variable, find the set of local Variables that are intended to be
merged containing that seed. The result will be an array with at least the seed variable in it.
@param function is the function containing the local variables
@param seed is the seed local variable
@return an array of all Variables intended to be merged.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/pcode/HighFunctionDBUtil.java