Unable to target specific declarations using @preconcurrency import

[mattmassicotte]

Description

I'd like to be able to narrowly target a preconcurrency import. I think this is desirable, because I still want to have other unsafe stuff from the import checked more closely.

Right now, the compiler accepts this code, but seems to apply @preconcurrency to the module as a whole.

Reproduction

// from CoreServices
public var kLSSharedFileListSessionLoginItems: Unmanaged<CFString>

// my code
@preconcurrency import var CoreServices.kLSSharedFileListSessionLoginItems

Expected behavior

Apply to only this imported var.

Environment

Apple Swift version 6.0-dev (LLVM 6e13b8be259f20f, Swift 372de46)
Target: arm64-apple-macosx14.0

Additional information

No response