Add historical test coverage for removed features and renames

[ErichDonGubler]

In the main WPT test harness, many APIs have historical tests. These tests ensure that features that may once have been standard or even unshipped after significant use are no longer supported in a browser.

For example, DOM has https://github.com/web-platform-tests/wpt/blob/b8538c8c1cd7e6b5b7e42a618119b69b6521a17b/dom/historical.html.

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Coverage that we should add:

• Migration from GPUAdapter.requestAdapterInfo's Promise API to the GPUAdapter.info field (requestAdapterInfo should not exist)
• Removal of GPUShaderModuleDescriptor.sourceMap (the member should not be accessed and its type should not be validated)
• maxInterStageShaderComponents (it should not exist on adapter.limits or device.limits, and should not be accessed by requestDevice())
• float32-filterable shouldn't enable float32 blending (this is just a chromium regression test but it's useful)
• TODO: more cases?

[kainino0x]

Thanks for filing! Added a few more.