public List<String> getExistingLocalVariableNames() {
		return Arrays.stream(function.getLocalVariables())
				.filter(var -> var.getName() != null && !Undefined.isUndefined(var.getDataType()))
				.map(var -> var.getName())
				.collect(Collectors.toList());
	}
Returns true if the specified stack offset is within the function's local variable
storage area.

@param offset stack offset to test
@return true if stack offset is within this function's local variable area
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DWARFFunction.java