Fix for a GCMole issue introduced in r21117.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/269743002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21121 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/bootstrapper.cc

@@ -2108,8 +2108,8 @@ void Genesis::InstallJSFunctionResultCaches() {
 
 
 void Genesis::InitializeNormalizedMapCaches() {
-  native_context()->set_normalized_map_cache(
-      *NormalizedMapCache::New(isolate()));
+  Handle<NormalizedMapCache> cache = NormalizedMapCache::New(isolate());
+  native_context()->set_normalized_map_cache(*cache);
 }