[clang] Add support for builtin_verbose_trap (PR #79230)

[Dan Liew via cfe-commits]

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+// RUN: %clang_cc1 -triple arm64-apple-ios -std=c++20 -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s
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delcypher wrote:

@pogo59 @ahatanak Thanks for the explanation.

A slight issue with that is some cases Clang will generate different (unoptimized IR) depending on the optimization level (see `CodeGenFunction::EmitTrapCheck`) so in those cases you have to test Clang's optimizing behavior. You're not using that here so that's fine

https://github.com/llvm/llvm-project/pull/79230