Add native function declarations for all relevant Test contract functions

[m-Peter]

Closes #2822

Description

With the introduction of #2821, we can now declare native functions inside the Test contract, and remove the workaround that used CompositeType.ResolveMembers().

To do that, we also had to enable default arguments for native functions, since Test.assert and Test.fail both have an optional message argument.

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• Targeted PR against master branch
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work
• Code follows the standards mentioned here
• Updated relevant documentation
• Re-reviewed Files changed in the Github PR explorer
• Added appropriate labels

[SupunS]

Does this replace #2823? I see that the #2823 is on top of master. Do we need both, or does having this change on the stable-cadence branch make it easier to do the change?

[m-Peter]

Oh, right, I forgot to close #2823 🤦
This actually uses some changes for default arguments, which were introduced from default resource destroyed events.
I have added support for parsing default arguments in native functions, however I am not sure on how to proceed with the checking part.

[SupunS]

Not sure why this got closed. This should now be opened against the master (#2971)

[m-Peter]

@SupunS Because the onflow:feature/stable-cadence was merged on master, and then deleted. I will rebase on top of the new changes that got added in between, and I'll re-open against the master branch.

[SupunS]

Yeah, usually it should get automatically rebased. But thank you for reopening 🙏

[m-Peter]

There are some conflicts that need to be resolved by hand, that's why it didn't get automatically rebased probably.