Optimize functions containing try-catch.

runtime/vm/il_printer.cc

 // 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.
 
 #include "vm/il_printer.h"
 
 #include "vm/intermediate_language.h"
 #include "vm/os.h"
 #include "vm/parser.h"
 
@@ skipping 806 matching lines @@
   }
 }
 
 
 void CatchBlockEntryInstr::PrintTo(BufferFormatter* f) const {
   f->Print("B%"Pd"[target catch %"Pd"]", block_id(), catch_try_index());
   if (HasParallelMove()) {
     f->Print(" ");
     parallel_move()->PrintTo(f);
   }
+
+  const GrowableArray<Definition*>& defns = initial_definitions_;
+  if (defns.length() > 0) {
+    f->Print(" {");
+    for (intptr_t i = 0; i < defns.length(); ++i) {
+      Definition* def = defns[i];
+      f->Print("\n      ");
+      def->PrintTo(f);
+    }
+    f->Print("\n}");
+  }
 }
 
 
 void PushArgumentInstr::PrintOperandsTo(BufferFormatter* f) const {
   value()->PrintTo(f);
 }
 
 
 void GotoInstr::PrintTo(BufferFormatter* f) const {
   if (HasParallelMove()) {
@@ skipping 44 matching lines @@
       f->Print(" [");
       locations_[i].PrintTo(f);
       f->Print("]");
     }
   }
   f->Print(" }");
   if (outer_ != NULL) outer_->PrintTo(f);
 }
 
 }  // namespace dart