Change BundleLiteral to RecordLiteral

[sequencer]

Related issue:

Type of change: feature request

Impact: API addition (no impact on existing code)

Development Phase: proposal

Release Notes

Since RocketChip use Record for AutoBunlde and diplomatic bundles like TLBundle, if we need to test RocketChip with native chisel tester, we should allow Lit to Record.
This PR changes all BundleLiterals to RecordLiterals, which enables Lit method for Record, and deprecate original BundleLiterals, it won't affect existing code, and enalbe peek/poke for Diplomatic Bundle in chiseltester.

[ducky64]

The implementation looks fine.

I'm not sure that I want to recommend the use of RecordLiterals as a name, since much fewer users will be familiar with Record rather than Bundle (despite it technically being more correct). That being said, when we mainline bundle literals, there will no longer be a need to import a BundleLiterals object at all.

[sequencer]

Yes my intention is to PR a minimal patch to this feature.
I'm not sure if I we can remove RecordLiterals/BundleLiterals, and directly use implicit def for this feature, since it contains a breaking modification to codes.

[ducky64]

We discussed this at the meeting today and:

• agree that the feature (providing a Record literals interface) should be implemented
• are concerned that the rename will break binary compatibility
• because BundleLiterals is an experimental import (which hopefully will be mainlined someday and obsoleted) and Record is an advanced user construct, the best solution (though technically "incorrect") is probably just to expand the BundleLiterals API to also take Records. So, basically, what you have now minus the BundleLiterals -> RecordLiterals rename.

[sequencer]

I think this is a minimal patch now:)

[ducky64]

lgtm