STYLE: use list methods find/found instead of findIndex function

src/sampling/meshToMesh/calcMethod/mapNearest/mapNearestMethod.C

@@ -297,7 +297,7 @@ Foam::label Foam::mapNearestMethod::findMappedSrcCell
         // search target tgtCelli neighbours for match with source cell
         label tgtI = testCells.remove();
 
-        if (findIndex(visitedCells, tgtI) == -1)
+        if (!visitedCells.found(tgtI))
         {
             visitedCells.append(tgtI);
 
@@ -311,7 +311,7 @@ Foam::label Foam::mapNearestMethod::findMappedSrcCell
 
                 forAll(nbrCells, i)
                 {
-                    if (findIndex(visitedCells, nbrCells[i]) == -1)
+                    if (!visitedCells.found(nbrCells[i]))
                     {
                         testCells.append(nbrCells[i]);
                     }

src/sampling/meshToMesh/calcMethod/meshToMeshMethod/meshToMeshMethod.C

@@ -168,14 +168,12 @@ void Foam::meshToMeshMethod::appendNbrCells
     const labelList& nbrCells = mesh.cellCells()[celli];
 
     // filter out cells already visited from cell neighbours
-    forAll(nbrCells, i)
+    for (const label nbrCelli : nbrCells)
     {
-        label nbrCelli = nbrCells[i];
-
         if
         (
-            (findIndex(visitedCells, nbrCelli) == -1)
-         && (findIndex(nbrCellIDs, nbrCelli) == -1)
+            !visitedCells.found(nbrCelli)
+         && !nbrCellIDs.found(nbrCelli)
         )
         {
             nbrCellIDs.append(nbrCelli);

src/sampling/meshToMesh/meshToMeshParallelOps.C

@@ -70,7 +70,7 @@ Foam::label Foam::meshToMesh::calcDistribution
         }
         else if (nHaveCells == 1)
         {
-            proci = findIndex(cellsPresentOnProc, 1);
+            proci = cellsPresentOnProc.find(1);
             if (debug)
             {
                 InfoInFunction