[clang] [HLSL][SPIRV] Add convergence tokens to entry point wrapper (PR #112757)

[Steven Perron via cfe-commits]

================
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -triple spirv-pc-vulkan-compute -finclude-default-header -fnative-half-type -disable-llvm-passes -emit-llvm -o - %s | FileCheck %s
----------------
s-perron wrote:

I copied from another test. I have removed it.

https://github.com/llvm/llvm-project/pull/112757