In the Profiler there's no namespace prefix when the method is inheriting the ISystem interface

Reproduction steps:
1. Open the attached project
2. Open the "/Assets/Scenes/SampleScene.unity" Scene
3. Enter the Play Mode
4. Open the Profiler (Window > Analysis > Profiler)
5. Enable the "Live" option and type "TestSystem" in the search bar in the Profiler window
6. Observe the prefixes before the "TestSystem" method names

Expected result: All of the methods starting with "TestSystem" have a prefix
Actual result: Only the "TestSystem3" and "TestSystem4" methods have a prefix

Reproducible with: 0.50.1-preview.2 (2020.3.37f1), 0.51.0-preview.32 (2020.3.37f1, 2021.3.6f1)
Could not test with: 2019.4.39f1 - DOTS is not supported, 0.17.0-preview.42, 0.50.0-preview.24 (2020.3.37f1), 0.17.0-preview.42, 0.50.0-preview.24, 0.50.1-preview.2 (2020.3.37f1, 2021.3.6f1), 0.17.0-preview.42, 0.50.0-preview.24, 0.50.1-preview.2, 0.51.0-preview.32 (2022.2.10f1, 2022.2.0b2, 2023.1.0a4) - unable to upgrade/downgrade due to a bug in the compiler error or very many other errors