Experimental: use register allocation in the code for keyed property

src/virtual-frame-ia32.cc

Index: src/virtual-frame-ia32.cc
===================================================================
--- src/virtual-frame-ia32.cc	(revision 1054)
+++ src/virtual-frame-ia32.cc	(working copy)
@@ -918,12 +918,15 @@
 }
 
 
-void VirtualFrame::CallCodeObject(Handle<Code> code,
-                                  RelocInfo::Mode rmode,
-                                  int frame_arg_count) {
+Result VirtualFrame::CallCodeObject(Handle<Code> code,
+                                    RelocInfo::Mode rmode,
+                                    int frame_arg_count) {
   ASSERT(cgen_->HasValidEntryRegisters());
   PrepareForCall(frame_arg_count);
   __ call(code, rmode);
+  Result result = cgen_->allocator()->Allocate(eax);
+  ASSERT(result.is_valid());
+  return result;
 }