Fix x64 DEBUG build.

TBR=lrn@chromium.org

Review URL: http://codereview.chromium.org/338042

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3139 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/x64/fast-codegen-x64.cc

@@ -317,7 +317,7 @@ void FastCodeGenerator::VisitObjectLiteral(ObjectLiteral* expr) {
       case ObjectLiteral::Property::GETTER:
         __ push(rax);
         Visit(key);
-        ASSERT(key->location.is_temporary());
+        ASSERT(key->location().is_temporary());
         __ Push(property->kind() == ObjectLiteral::Property::SETTER ?
                 Smi::FromInt(1) :
                 Smi::FromInt(0));