Adding compound assignments to the top-level compiler.

src/fast-codegen.h

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 68 matching lines @@
   void VisitDeclarations(ZoneList<Declaration*>* declarations);
   void DeclareGlobals(Handle<FixedArray> pairs);
 
   // Platform-specific return sequence
   void EmitReturnSequence(int position);
 
   // Platform-specific code sequences for calls
   void EmitCallWithStub(Call* expr);
   void EmitCallWithIC(Call* expr, RelocInfo::Mode reloc_info);
 
+  // Platform-specific code for loading variables.
+  void EmitVariableLoad(Variable* expr, Expression::Context context);
+
   // Platform-specific support for compiling assignments.
 
+  // Load a value from a named property and push the result on the stack.
+  // The receiver is left on the stack by the IC.
+  void EmitNamedPropertyLoad(Property* expr, Expression::Context context);
+
+  // Load a value from a named property and push the result on the stack.
+  // The receiver and the key is left on the stack by the IC.
+  void EmitKeyedPropertyLoad(Expression::Context context);
+
+  // Apply the compound assignment operator. Expects both operands on top
+  // of the stack.
+  void EmitCompoundAssignmentOp(Token::Value op, Expression::Context context);
+
   // Complete a variable assignment.  The right-hand-side value is expected
   // on top of the stack.
   void EmitVariableAssignment(Assignment* expr);
 
   // Complete a named property assignment.  The receiver and right-hand-side
   // value are expected on top of the stack.
   void EmitNamedPropertyAssignment(Assignment* expr);
 
   // Complete a keyed property assignment.  The reciever, key, and
   // right-hand-side value are expected on top of the stack.
@@ skipping 29 matching lines @@
   Label* true_label_;
   Label* false_label_;
 
   DISALLOW_COPY_AND_ASSIGN(FastCodeGenerator);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FAST_CODEGEN_H_