[Issue 20897] -betterC generates `try`/`catch` in the AST when using struct destructors

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=20897

--- Comment #1 from Roxanne <assemblyislaw at gmail.com> ---
I meant LDC 1.21.0 with LLVM 10.0.0, not LDC 10.0.0, sorry for the
inconvenience

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