Unreviewed build fix for the EFL and GTK ports.

* runtime/CodeCache.cpp:
(JSC::CodeCacheMap::pruneSlowCase): Pass a 0 casted to the int64_t type instead of 0LL
to the std::max call so the arguments' types match.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147079 268f45cc-cd09-0410-ab3c-d52691b4dbfc