[clang] [clang] solve crash due to function overloading. (PR #90255)

[Eli Friedman via cfe-commits]

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+// RUN: %clang_cc1 -emit-llvm < %s
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efriedma-quic wrote:

Can you integrate this test into some existing file that's testing something similar?

Please leave the bug number in a comment: something like `//GH88917`.

Please use FileCheck CHECK lines to verify the correct call instruction is emitted.

https://github.com/llvm/llvm-project/pull/90255