[Interpreter] Unary operators - typeof, void, and logical not.

src/interpreter/bytecode-generator.h

Index: src/interpreter/bytecode-generator.h
diff --git a/src/interpreter/bytecode-generator.h b/src/interpreter/bytecode-generator.h
index edba38b74bf347564d60ce2b1e6139799e043aac..b3533a0bd427483982357cf72344acb34cf46f04 100644
--- a/src/interpreter/bytecode-generator.h
+++ b/src/interpreter/bytecode-generator.h
@@ -34,6 +34,11 @@ class BytecodeGenerator : public AstVisitor {
   void VisitPropertyLoad(Register obj, Property* expr);
   void VisitVariableLoad(Variable* variable);
 
+  // Dispatched from VisitUnaryOperation.
+  void VisitVoid(UnaryOperation* expr);
+  void VisitTypeOf(UnaryOperation* expr);
+  void VisitNot(UnaryOperation* expr);
+
   inline BytecodeArrayBuilder* builder() { return &builder_; }
   inline Scope* scope() const { return scope_; }
   inline void set_scope(Scope* scope) { scope_ = scope; }