VM: Make optimized try-catch work in DBC.

runtime/vm/flow_graph_allocator.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_FLOW_GRAPH_ALLOCATOR_H_
 #define VM_FLOW_GRAPH_ALLOCATOR_H_
 
 #include "vm/flow_graph.h"
 #include "vm/growable_array.h"
 #include "vm/intermediate_language.h"
@@ skipping 230 matching lines @@
   // Mark the live range as a live object pointer at all safepoints
   // contained in the range.
   void MarkAsObjectAtSafepoints(LiveRange* range);
 
   MoveOperands* AddMoveAt(intptr_t pos, Location to, Location from);
 
   Location MakeRegisterLocation(intptr_t reg) {
     return Location::MachineRegisterLocation(register_kind_, reg);
   }
 
+  void SplitInitialDefinitionAt(LiveRange* range, intptr_t pos);
+
   void PrintLiveRanges();
 
   const FlowGraph& flow_graph_;
 
   ReachingDefs reaching_defs_;
 
   // Representation for SSA values indexed by SSA temp index.
   GrowableArray<Representation> value_representations_;
 
   const GrowableArray<BlockEntryInstr*>& block_order_;
@@ skipping 415 matching lines @@
 
   AllocationFinger finger_;
 
   DISALLOW_COPY_AND_ASSIGN(LiveRange);
 };
 
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_ALLOCATOR_H_