First stab at try-catch and try-finally in TurboFan.

src/compiler/js-operator.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/js-operator.h"
 
 #include <limits>
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
@@ skipping 384 matching lines @@
       2, 1, 1, 0, 1, 0,                              // counts
       access);                                       // parameter
 }
 
 
 const Operator* JSOperatorBuilder::CreateCatchContext(
     const Unique<String>& name) {
   return new (zone()) Operator1<Unique<String>>(                 // --
       IrOpcode::kJSCreateCatchContext, Operator::kNoProperties,  // opcode
       "JSCreateCatchContext",                                    // name
-      1, 1, 1, 1, 1, 0,                                          // counts
+      2, 1, 1, 1, 1, 0,                                          // counts
       name);                                                     // parameter
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8