Swift 5.5 has serious stack corruption bugs!

[Douglas_Gregor]

@taylorswift

$ swiftc --version
Swift version 5.6-dev (LLVM 7aef0efea99e2c6, Swift e4f71c8e118fc09)
Target: x86_64-unknown-linux-gnu

i’m not sure if the LLVM hash 7aef0efea99e2c6 is before or after the fix was merged

This snapshot did not have the fix.

Doug