[clang] [Clang] Implement P0963R3 "Structured binding declaration as a condition" (PR #130228)

[via cfe-commits]

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@@ -5218,16 +5218,28 @@ static bool EvaluateVarDecl(EvalInfo &Info, const 
VarDecl *VD) {
   return true;
 }
 
+static bool EvaluateDecompositionDeclInit(EvalInfo &Info,
+                                          const DecompositionDecl *DD);
+
 static bool EvaluateDecl(EvalInfo &Info, const Decl *D) {
   bool OK = true;
 
   if (const VarDecl *VD = dyn_cast<VarDecl>(D))
     OK &= EvaluateVarDecl(Info, VD);
 
-  if (const DecompositionDecl *DD = dyn_cast<DecompositionDecl>(D))
-    for (auto *BD : DD->flat_bindings())
-      if (auto *VD = BD->getHoldingVar())
-        OK &= EvaluateDecl(Info, VD);
+  if (const DecompositionDecl *DD = dyn_cast<DecompositionDecl>(D);
+      DD && !DD->isDecisionVariable())
+    OK &= EvaluateDecompositionDeclInit(Info, DD);
----------------
cor3ntin wrote:

Agreed

https://github.com/llvm/llvm-project/pull/130228
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