[llvm] [HLSL] Change default linkage of HLSL functions to internal (PR #95331)

[Chris B via llvm-commits]

================
@@ -0,0 +1,60 @@
+; RUN: opt -S -dxil-finalize-linkage -mtriple=dxil-unknown-shadermodel6.5-compute %s | FileCheck %s
----------------
llvm-beanz wrote:

Can you add a run line that uses llc to run the full pipeline and verifies that the `hlsl.export` string attribute gets removed?

https://github.com/llvm/llvm-project/pull/95331