[llvm] [AMDGPU] Relax restrictions on amdgcn.cs.chain intrinsic (PR #169785)

[Matt Arsenault via llvm-commits]

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@@ -6761,11 +6761,15 @@ void Verifier::visitIntrinsicCall(Intrinsic::ID ID, CallBase &Call) {
     case CallingConv::AMDGPU_CS:
     case CallingConv::AMDGPU_CS_Chain:
     case CallingConv::AMDGPU_CS_ChainPreserve:
+    case CallingConv::AMDGPU_ES:
+    case CallingConv::AMDGPU_GS:
+    case CallingConv::AMDGPU_HS:
+    case CallingConv::AMDGPU_LS:
+    case CallingConv::AMDGPU_VS:
       break;
     default:
-      CheckFailed("Intrinsic can only be used from functions with the "
-                  "amdgpu_cs, amdgpu_cs_chain or amdgpu_cs_chain_preserve "
-                  "calling conventions",
+      CheckFailed("Intrinsic can't be called from functions with this "
----------------
arsenm wrote:

```suggestion
      CheckFailed("Intrinsic cannot be called from functions with this "
```

Avoid contractions in error messages 

https://github.com/llvm/llvm-project/pull/169785