[Clang][OpenMP] Fix the wrong transform of num_teams claused introduced in #99732

Author: shiltian

clang/lib/Sema/TreeTransform.h

@@ -11018,11 +11018,16 @@ TreeTransform<Derived>::TransformOMPAllocateClause(OMPAllocateClause *C) {
 template <typename Derived>
 OMPClause *
 TreeTransform<Derived>::TransformOMPNumTeamsClause(OMPNumTeamsClause *C) {
-  ExprResult E = getDerived().TransformExpr(C->getNumTeams().front());
-  if (E.isInvalid())
-    return nullptr;
+  llvm::SmallVector<Expr *, 3> Vars;
+  Vars.reserve(C->varlist_size());
+  for (auto *VE : C->varlist()) {
+    ExprResult EVar = getDerived().TransformExpr(cast<Expr>(VE));
+    if (EVar.isInvalid())
+      return nullptr;
+    Vars.push_back(EVar.get());
+  }
   return getDerived().RebuildOMPNumTeamsClause(
-      E.get(), C->getBeginLoc(), C->getLParenLoc(), C->getEndLoc());
+      Vars, C->getBeginLoc(), C->getLParenLoc(), C->getEndLoc());
 }
 
 template <typename Derived>