Reproduction steps:
1. Create a new Unity project
2. Go to the 'Window -> Package Manager'
3. Click the add button in the status bar and select 'Add package by name'
4. Add the 'com.unity.collections’ package with version ‘1.1.0’

Expected result: No warnings are in the Console
Actual result: 'Script will not be compiled' warnings are in the Console

Reproducible with: 1.1.0 (2021.3.5f1, 2022.1.8f1)
Not reproducible with: 1.1.0 (2020.3.36f1, 2022.2.0a18, 2023.1.0a2), 1.2.3-pre.1 (2021.3.5f1), 1.3.1 (2021.3.5f1)

Reproducible on: macOS 12.4 (Intel)

Warnings:

• 'Script 'Packages/com.unity.collections/DocCodeSamples.Tests/CollectionsAllocationExamples.cs' will not be compiled because it exists outside the Assets folder and does not to belong to any assembly definition file.'
• 'Script 'Packages/com.unity.collections/DocCodeSamples.Tests/CollectionsExamples.cs' will not be compiled because it exists outside the Assets folder and does not to belong to any assembly definition file.'