Add EmitKeyedStore and EmitKeyedPropertyAssignment to x64. Removal of...

Add EmitKeyedStore and EmitKeyedPropertyAssignment to x64.  Removal of Reference class from VisitAssignment complete on all platforms.
Review URL: http://codereview.chromium.org/3028015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5112 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/x64/codegen-x64.h

@@ -457,6 +457,7 @@ class CodeGenerator: public AstVisitor {
   // Support for compiling assignment expressions.
   void EmitSlotAssignment(Assignment* node);
   void EmitNamedPropertyAssignment(Assignment* node);
+  void EmitKeyedPropertyAssignment(Assignment* node);
 
   // Receiver is passed on the frame and not consumed.
   Result EmitNamedLoad(Handle<String> name, bool is_contextual);
@@ -470,6 +471,9 @@ class CodeGenerator: public AstVisitor {
   // not changed.
   Result EmitKeyedLoad();
 
+  // Receiver, key, and value are passed on the frame and consumed.
+  Result EmitKeyedStore(StaticType* key_type);
+
   // Special code for typeof expressions: Unfortunately, we must
   // be careful when loading the expression in 'typeof'
   // expressions. We are not allowed to throw reference errors for