make solution less arbitary

Revert "make solution less arbitary"

This reverts commit 29cfce3.

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analyzers/src/SonarAnalyzer.CFG/LiveVariableAnalysis/RoslynLiveVariableAnalysis.cs

@@ -128,7 +128,7 @@ private void BuildBranches(BasicBlock block)
         if (block.EnclosingNonLocalLifetimeRegion() is { Kind: ControlFlowRegionKind.Try } tryRegion)
         {
             var catchesAll = false;
-            foreach (var catchOrFilterRegion in block.Successors.Union(Cfg.Blocks[tryRegion.LastBlockOrdinal].Successors).SelectMany(CatchOrFilterRegions))
+            foreach (var catchOrFilterRegion in tryRegion.Blocks(Cfg).Where(x => x.Ordinal >= block.Ordinal).SelectMany(x => x.Successors).SelectMany(CatchOrFilterRegions))
             {
                 var catchOrFilterBlock = Cfg.Blocks[catchOrFilterRegion.FirstBlockOrdinal];
                 AddBranch(block, catchOrFilterBlock);