[clang] [CIR] Defer declarations and tentative definitions (PR #141700)

[Andy Kaylor via cfe-commits]

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@@ -135,6 +135,10 @@ class CIRGenConsumer : public clang::ASTConsumer {
     }
     }
   }
+
+  void CompleteTentativeDefinition(VarDecl *D) override {
+    Gen->CompleteTentativeDefinition(D);
+  }
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andykaylor wrote:

We're using clang naming style in this file based on previous agreement with the clang maintainers.

https://github.com/llvm/llvm-project/pull/141700