`NSCFString` `fatalError("Constant strings cannot be deallocated")`

[compnerd]

When trying to do the following:

print(Bundle.module.url(forResource: "Info", withExtension: "plist", subdirectory: "Resources"))

the fatalError at https://github.com/apple/swift-corelibs-foundation/blob/main/Sources/Foundation/NSCFString.swift#L118-L120 is triggered.

This is due to Bundle.url(forResource:withException:subdirectory:) invoking CFBundleCopyResourceURL, which in turn invokes _CFBundleCopyFindResources, which will run the following:

if (realSubdirectory) CFRelease(realSubdirectory);

[compnerd]

foundation-4804.zip

[parkera]

A difference from Darwin, where releasing constant strings is a no-op...

[compnerd]

I believe that this is impacting Linux as well

[compnerd]

@parkera I think that this might be hinting towards a bridging issue where the bridge between a String and NSCFConstantString does not elide thee release.