Restore 0-based temporary index numbering in the VM compiler.

runtime/vm/flow_graph_builder.h

 // Copyright (c) 2012, 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_BUILDER_H_
 #define VM_FLOW_GRAPH_BUILDER_H_
 
 #include "platform/assert.h"
 #include "platform/globals.h"
 #include "vm/allocation.h"
@@ skipping 143 matching lines @@
   }
 
   bool IsInlining() const { return (exit_collector_ != NULL); }
   InlineExitCollector* exit_collector() const { return exit_collector_; }
 
   ZoneGrowableArray<const Field*>* guarded_fields() const {
     return guarded_fields_;
   }
 
   intptr_t temp_count() const { return temp_count_; }
-  intptr_t AllocateTemp() { return ++temp_count_; }
+  intptr_t AllocateTemp() { return temp_count_++; }
   void DeallocateTemps(intptr_t count) {
     ASSERT(temp_count_ >= count);
     temp_count_ -= count;
   }
 
   intptr_t args_pushed() const { return args_pushed_; }
   void add_args_pushed(intptr_t n) { args_pushed_ += n; }
 
   // When compiling for OSR, remove blocks that are not reachable from the
   // OSR entry point.
@@ skipping 362 matching lines @@
   // Output parameters.
   GrowableArray<TargetEntryInstr**> true_successor_addresses_;
   GrowableArray<TargetEntryInstr**> false_successor_addresses_;
 
   intptr_t condition_token_pos_;
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_BUILDER_H_