[SR-15377] [cxx-interop] Enable round tripping debug types.

[zoecarver]

Previous ID	SR-15377
Radar	rdar://84827513
Original Reporter	@zoecarver
Type	Bug

Additional Detail from JIRA

Votes	0
Component/s	Compiler
Labels	Bug, ClangImporter, CxxInterop
Assignee	None
Priority	Medium

md5: e344d095361a32f99f4ccd77a35d239a

Issue Description:

Currently, we don't verify that we can round trip debug types because it breaks for some C++ types. We should fix this and re-enable it.

[zoecarver]

@swift-ci create

[zoecarver]

Refs: #39886

[slavapestov]

PR to narrow down the hack: #85288