[clang] [CIR][SYCL] Device kernel caller (PR #213771)

[Konstantinos Parasyris via cfe-commits]

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@@ -783,6 +784,18 @@ const CIRGenFunctionInfo &CIRGenTypes::arrangeCIRFunctionInfo(
   return *fi;
 }
 
+const CIRGenFunctionInfo &CIRGenTypes::arrangeDeviceKernelCallerDeclaration(
+    QualType resultType, const FunctionArgList &args) {
+  SmallVector<CanQualType, 16> argTypes;
+  for (const VarDecl *arg : args)
+    argTypes.push_back(astContext.getCanonicalParamType(arg->getType()));
+
+  assert(!cir::MissingFeatures::opCallFnInfoOpts());
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koparasy wrote:

I believe this is not implemented in CIR yet, no? [CIR](https://github.com/llvm/llvm-project/blob/main/clang/lib/CIR/CodeGen/CIRGenTypes.cpp#L753C40-L753C62) vs [OG](https://github.com/llvm/llvm-project/blob/main/clang/lib/CodeGen/CodeGenTypes.h#L293). We guard this case with `assert(!opCallFnInfoOpts())` as other cases do as well. 

https://github.com/llvm/llvm-project/pull/213771