Cleanup: Align more linters to the type checker pattern

[JoelSpeed]

This PR is purely refactoring in an effort to build consistency and align the code/outputs of various linters.

Best reviewed commit-wise:

• Changing the type checker to allow a function to assert when the desired type has been unpacked
• Updating the NoDurations linter to leverage the type checker
• Aligns earlier type checker based linters to use the inspector helper
• Update the NoMaps linter to leverage the type checker

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[JoelSpeed]

@sivchari @Karthik-K-N You've both been working these linters recently so might be good to get one or both of you to review please