JIT: don't skip top-level catchrets when marking try resumption

In FlowGraphTryRegions::Build, the BBJ_EHCATCHRET check sat below the
early bailout on hasTryIndex, so the catchret of an outer catch was
never marking its try region as requiring runtime resumption.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: AndyAyersMS

src/coreclr/jit/flowgraph.cpp

@@ -7744,6 +7744,19 @@ FlowGraphTryRegions* FlowGraphTryRegions::Build(Compiler* comp, FlowGraphDfsTree
 
     for (BasicBlock* block : comp->Blocks())
     {
+        // If this block is a BBJ_EHCATCHRET, mark the "dispatching try" region
+        // as requiring runtime resumption.
+        //
+        if (block->KindIs(BBJ_EHCATCHRET))
+        {
+            assert(block->hasHndIndex());
+            unsigned const            ehRegionIndex        = block->getHndIndex();
+            BasicBlock* const         dispatchingTryBlock  = comp->ehGetDsc(ehRegionIndex)->ebdTryBeg;
+            FlowGraphTryRegion* const dispatchingTryRegion = regions->GetTryRegionByHeader(dispatchingTryBlock);
+
+            dispatchingTryRegion->SetRequiresRuntimeResumption();
+        }
+
         if (!block->hasTryIndex())
         {
             continue;
@@ -7825,19 +7838,6 @@ FlowGraphTryRegions* FlowGraphTryRegions::Build(Compiler* comp, FlowGraphDfsTree
             // This is a handler block inside a try.
             // For flow purposes we may consider it to be outside the try.
         }
-
-        // If this block is a BBJ_EHCATCHRET, mark the "dispatching try" region
-        // as requiring runtime resumption.
-        //
-        if (block->KindIs(BBJ_EHCATCHRET))
-        {
-            assert(block->hasHndIndex());
-            unsigned const            ehRegionIndex        = block->getHndIndex();
-            BasicBlock* const         dispatchingTryBlock  = comp->ehGetDsc(ehRegionIndex)->ebdTryBeg;
-            FlowGraphTryRegion* const dispatchingTryRegion = regions->GetTryRegionByHeader(dispatchingTryBlock);
-
-            dispatchingTryRegion->SetRequiresRuntimeResumption();
-        }
     }
 
     return regions;