ImmutableIntList of four does not store 2nd and 3rd element correctly.

[wilx]

Description

There appears to be a defect in ImmutableIntList#of(int, int, int, int...). It does not actually store 2nd and 3rd item correctly.

Related Issue

Type of Change

• [ ] 📚 Examples / docs / tutorials / dependencies update
• [x] 🔧 Bug fix (non-breaking change which fixes an issue)
• [ ] 🥂 Improvement (non-breaking change which improves an existing feature)
• [ ] 🚀 New feature (non-breaking change which adds functionality)
• [ ] 💥 Breaking change (fix or feature that would cause existing functionality to change)
• [ ] 🔐 Security fix

Checklist

• [x] I've written tests (if applicable) for all new methods and classes that I created.
• [ ] I've added documentation as necessary so users can easily use and understand this feature/fix.