[turbofan] Fix OSR compilations of for-in.

src/compiler.h

 // Copyright 2012 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_H_
 #define V8_COMPILER_H_
 
 #include "src/allocation.h"
 #include "src/ast.h"
 #include "src/bailout-reason.h"
@@ skipping 387 matching lines @@
 
   int optimization_id() const { return optimization_id_; }
 
   AstValueFactory* ast_value_factory() const { return ast_value_factory_; }
   void SetAstValueFactory(AstValueFactory* ast_value_factory,
                           bool owned = true) {
     ast_value_factory_ = ast_value_factory;
     ast_value_factory_owned_ = owned;
   }
 
+#if DEBUG
+  void PrintAstForTesting();
+#endif
+
  protected:
   CompilationInfo(Handle<SharedFunctionInfo> shared_info,
                   Zone* zone);
   CompilationInfo(HydrogenCodeStub* stub,
                   Isolate* isolate,
                   Zone* zone);
   CompilationInfo(ScriptCompiler::ExternalSourceStream* source_stream,
                   ScriptCompiler::StreamedSource::Encoding encoding,
                   Isolate* isolate, Zone* zone);
 
@@ skipping 338 matching lines @@
   Zone zone_;
   unsigned info_zone_start_allocation_size_;
   base::ElapsedTimer timer_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationPhase);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_COMPILER_H_