test: fix the prespecialized metadata tests

[compnerd]

This loosens the overly fitted patterns and makes them much more
legible. Unfortunately, the parent VWT is referenced differently and
has been dropped here to actually allow the test to pass on all targets.

Replace this paragraph with a description of your changes and rationale. Provide links to external references/discussions if appropriate.

Resolves SR-NNNN.

[compnerd]

CC: @nate-chandler
This loosens the test in a few cases because they are overly constrained and I dont know if the parent VWT reference is material. If it is, you could tighten the test in a follow up.

[compnerd]

@swift-ci please smoke test

[nate-chandler]

@compnerd Thank you very much for these changes! The whitespace changes alone are extremely nice.

A couple of quick questions:

• Were lines such as https://github.com/apple/swift/pull/29150/files#diff-2203dc5523a6878b5eeefd943f25380bL8 not present on Windows?
• Because of the whitespace improvements, it's a little tricky for me to see what notes like this one are referring to https://github.com/apple/swift/pull/29150/files#diff-e8fabe1448af8bbc04e3269d2f820aa9R21 . What was being checked for in the original that is no longer being checked for.

Again, thank you very much for taking care of these tests on Windows!

[compnerd]

Yeah, the $sBi8_WV are not present on Windows. The reason for that is that the reference for the i8 type will be resolved at runtime due to the lazy resolution since you cannot have data references initialization to module-external symbols since they must be indirected through the IAT on PE/COFF (similar to indirecting through the GOT on MachO/ELF).

The only things which are not being checked for now are:

• references to the i8 VWT
• the parent reflection metadata (e.g. https://github.com/apple/swift/pull/29150/files#diff-73b3030ea50928efdd3a409256012ab6R15)

The parent reference is formed by indirecting through the VWT for the type on PE/COFF rather than having a global that you can reference (again for the same reason as above).

[compnerd]

@swift-ci please smoke test

[nate-chandler]

Understood. Thank you for the explanation!

[compnerd]

You’re welcome :). Thanks for taking a look at the changes!