https://bugs.webkit.org/show_bug.cgi?id=81446

Patch by Benjamin Poulain <bpoulain@apple.com> on 2012-03-20
Reviewed by Geoffrey Garen.

Instead of creating the JSString every time, we create
lazily the strings in JSGlobalData.

This avoid the construction of the StringImpl and of the JSString,
which gives some performance improvements.

* runtime/CommonIdentifiers.h:
* runtime/JSValue.cpp:
(JSC::JSValue::toStringSlowCase):
* runtime/Operations.cpp:
(JSC::jsTypeStringForValue):
* runtime/SmallStrings.cpp:
(JSC::SmallStrings::SmallStrings):
(JSC::SmallStrings::finalizeSmallStrings):
(JSC::SmallStrings::initialize):
(JSC):
* runtime/SmallStrings.h:
(SmallStrings):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@111433 268f45cc-cd09-0410-ab3c-d52691b4dbfc