[clang] [RemoveDIs] Update Clang front end to handle DbgRecords (PR #84756)

[Stephen Tozer via cfe-commits]

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@@ -4746,20 +4746,32 @@ void CodeGenFunction::EmitOMPTaskBasedDirective(
           if (CGF.CGM.getCodeGenOpts().hasReducedDebugInfo())
             (void)DI->EmitDeclareOfAutoVariable(SharedVar, ContextValue,
                                                 CGF.Builder, false);
-          llvm::Instruction &Last = CGF.Builder.GetInsertBlock()->back();
           // Get the call dbg.declare instruction we just created and update
           // its DIExpression to add offset to base address.
-          if (auto DDI = dyn_cast<llvm::DbgVariableIntrinsic>(&Last)) {
+          auto UpdateExpr = [](llvm::LLVMContext &Ctx, auto *DDI,
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SLTozer wrote:

Super nit, but in situations like this I prefer to change things like `DDI` to `Declare`; subjective, so non-blocking.

https://github.com/llvm/llvm-project/pull/84756