[Validator] Validate ground truth logical forms used in parsing test

## Type of Issue

Select the type of issue:
- [ ] Bug report (to report a bug)
- [x] Feature request (to request an additional feature)
- [ ] Tracker (I am just using this as a tracker)
- [ ] Refactor request
- [ ] Documentation Ask

## Description

The logical forms used in the parsing test should be in sync with ground truth, and the grammar. They should be added to the data validation unit test.

## Current Behavior

Validator unit tests cover the data files, but not the logical forms used in `common_functional_commands`.

## Expected Behavior

Add a new unit test to grammar validation tests.