[clang] [OpenMP] Support capturing structured bindings in OpenMP regions. (PR #190832)

[Zahira Ammarguellat via cfe-commits]

================
@@ -23567,6 +23888,20 @@ static void checkMappableExpressionList(
       continue;
     }
 
+    // Check for unsupported structured bindings early.
+    if (!NoDiagnose) {
+      if (const auto *DRE = dyn_cast<DeclRefExpr>(SimpleExpr)) {
+        const DecompositionDecl *DD = nullptr;
+        if (const auto *BD = dyn_cast<BindingDecl>(DRE->getDecl())) {
+          DD = cast<DecompositionDecl>(BD->getDecomposedDecl());
+        } else if (const auto *D =
+                       dyn_cast<DecompositionDecl>(DRE->getDecl())) {
+          DD = D;
+        }
+        if (DD && !getOriginalVarOrDiagnose(SemaRef, DD, ELoc))
----------------
zahiraam wrote:

Done.

https://github.com/llvm/llvm-project/pull/190832