[interpreter] Implement handling of try-finally constructs.

src/interpreter/bytecode-generator.h

 // Copyright 2015 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_INTERPRETER_BYTECODE_GENERATOR_H_
 #define V8_INTERPRETER_BYTECODE_GENERATOR_H_
 
 #include "src/ast/ast.h"
 #include "src/interpreter/bytecode-array-builder.h"
 #include "src/interpreter/bytecodes.h"
@@ skipping 14 matching lines @@
 
   // Visiting function for declarations list and statements are overridden.
   void VisitDeclarations(ZoneList<Declaration*>* declarations) override;
   void VisitStatements(ZoneList<Statement*>* statments) override;
 
  private:
   class ContextScope;
   class ControlScope;
   class ControlScopeForBreakable;
   class ControlScopeForIteration;
+  class ControlScopeForTopLevel;
+  class ControlScopeForTryCatch;
+  class ControlScopeForTryFinally;
   class ExpressionResultScope;
   class EffectResultScope;
   class AccumulatorResultScope;
   class RegisterResultScope;
   class RegisterAllocationScope;
 
   void MakeBytecodeBody();
   Register NextContextRegister() const;
 
   DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
@@ skipping 103 matching lines @@
   ContextScope* execution_context_;
   ExpressionResultScope* execution_result_;
   RegisterAllocationScope* register_allocator_;
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_BYTECODE_GENERATOR_H_