[clang] [HIP] fix host-used external kernel (PR #83870)

[Yaxun Liu via cfe-commits]

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@@ -24,6 +24,7 @@
 
 // NEG-NOT: @__clang_gpu_used_external = {{.*}} @_Z7kernel2v
 // NEG-NOT: @__clang_gpu_used_external = {{.*}} @_Z7kernel3v
+// XEG-NOT: @__clang_gpu_used_external = {{.*}} @_Z7kernel5v
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yxsamliu wrote:

fixed

https://github.com/llvm/llvm-project/pull/83870