Merge Pull Request #4429 from lucbv/Trilinos/MueLu_fix_4334

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PR Title: MueLu: modifying type in LocallexicographicIndexManager fix issue #4334
PR Author: lucbv

packages/muelu/src/Graph/StructuredAggregation/coupled/MueLu_LocalLexicographicIndexManager_def.hpp

@@ -468,7 +468,7 @@ namespace MueLu {
   getCoarseNodeFineLID(const LO i, const LO j, const LO k, LO& myLID) const {
     // Assumptions: (i,j,k) is a tuple on the coarse mesh
     //              myLID is the corresponding local ID on the fine mesh
-    const GO multiplier[3] = {1, this->lFineNodesPerDir[0], this->lNumFineNodes10};
+    const LO multiplier[3] = {1, this->lFineNodesPerDir[0], this->lNumFineNodes10};
     const LO indices[3] = {i, j, k};
 
     myLID = 0;