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

src/compiler/graph-builder.h

 // Copyright 2013 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.
 
 #ifndef V8_COMPILER_GRAPH_BUILDER_H_
 #define V8_COMPILER_GRAPH_BUILDER_H_
 
 #include "src/v8.h"
 
 #include "src/allocation.h"
@@ skipping 59 matching lines @@
  protected:
   // Base implementation used by all factory methods.
   virtual Node* MakeNode(const Operator* op, int value_input_count,
                          Node** value_inputs, bool incomplete) = 0;
 
  private:
   Isolate* isolate_;
   Graph* graph_;
 };
 
-}
-}
-}  // namespace v8::internal::compiler
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8
 
 #endif  // V8_COMPILER_GRAPH_BUILDER_H__