Enable inlining inside try-blocks in the VM's optimizing compiler.

runtime/vm/flow_graph_optimizer.cc

 // 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.
 
 #include "vm/flow_graph_optimizer.h"
 
 #include "vm/bit_vector.h"
 #include "vm/cha.h"
 #include "vm/cpu.h"
 #include "vm/dart_entry.h"
@@ skipping 4920 matching lines @@
     for (BlockIterator block_it = flow_graph->reverse_postorder_iterator();
          !block_it.Done();
          block_it.Advance()) {
       BlockEntryInstr* block = block_it.Current();
       if (block->try_index() == catch_entry->catch_try_index()) {
         for (ForwardInstructionIterator instr_it(block);
              !instr_it.Done();
              instr_it.Advance()) {
           Instruction* current = instr_it.Current();
           if (current->MayThrow()) {
-            Environment* env = current->env();
+            Environment* env = current->env()->Outermost();
             ASSERT(env != NULL);
             for (intptr_t env_idx = 0; env_idx < cdefs.length(); ++env_idx) {
               if (cdefs[env_idx] != NULL &&
                   env->ValueAt(env_idx)->BindsToConstant()) {
                 cdefs[env_idx] = env->ValueAt(env_idx)->definition();
               }
               if (cdefs[env_idx] != env->ValueAt(env_idx)->definition()) {
                 cdefs[env_idx] = NULL;
               }
             }
@@ skipping 5110 matching lines @@
 
   // Insert materializations at environment uses.
   for (intptr_t i = 0; i < exits_collector_.exits().length(); i++) {
     CreateMaterializationAt(
         exits_collector_.exits()[i], alloc, *slots);
   }
 }
 
 
 }  // namespace dart