[clang] [CIR] Handle ImportDecl in emitTopLevelDecl (PR #221720)

[Andy Kaylor via cfe-commits]

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@@ -2538,6 +2538,11 @@ void CIRGenModule::emitTopLevelDecl(Decl *decl) {
     emitDeclContext(cast<ExportDecl>(decl));
     break;
 
+  case Decl::Import:
+    // Nothing to emit for C++20 module imports. Initializers run through
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andykaylor wrote:

Classic codegen has a lot of code here. Can you explain to me why you don't think CIR needs it?

https://github.com/llvm/llvm-project/pull/221720