[clang] [BPF] Handle aliases in CodeGenModule::EmitExternalDeclaration. Fixes #192365 (PR #192374)

[Alexander Kornienko via cfe-commits]

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@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -triple bpfel -emit-llvm -debug-info-kind=constructor %s -o - | FileCheck %s
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alexfh wrote:

The crash doesn't reproduce without this option.

https://github.com/llvm/llvm-project/pull/192374