Fix try-finally for dead AST-branches in TurboFan.

src/compiler/ast-graph-builder.h

 // 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.
 
 #ifndef V8_COMPILER_AST_GRAPH_BUILDER_H_
 #define V8_COMPILER_AST_GRAPH_BUILDER_H_
 
 #include "src/v8.h"
 
 #include "src/ast.h"
@@ skipping 37 matching lines @@
 #define DECLARE_VISIT(type) void Visit##type(type* node) OVERRIDE;
   // Visiting functions for AST nodes make this an AstVisitor.
   AST_NODE_LIST(DECLARE_VISIT)
 #undef DECLARE_VISIT
 
   // Visiting function for declarations list is overridden.
   void VisitDeclarations(ZoneList<Declaration*>* declarations) OVERRIDE;
 
   // Get the node that represents the outer function context.
   Node* GetFunctionContext();
+
   // Get the node that represents the outer function closure.
   Node* GetFunctionClosure();
 
  private:
   class AstContext;
   class AstEffectContext;
   class AstValueContext;
   class AstTestContext;
   class ContextScope;
   class ControlScope;
@@ skipping 383 matching lines @@
 
   // Prepare environment to be used as loop header.
   void PrepareForLoop(BitVector* assigned, bool is_osr = false);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_AST_GRAPH_BUILDER_H_