Merged r14751, r14753 into trunk branch.

Fix Windows shared library build.

Don't allow copying holes to fields.

R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15744007

git-svn-id: https://v8.googlecode.com/svn/trunk@14754 ce2b1a6d-e550-0410-aec6-3dcde31c8c00