Crash on http://www.rickshawbags.com/

Crash on http://www.rickshawbags.com/
https://bugs.webkit.org/show_bug.cgi?id=78045

Reviewed by Darin Adler.

Problem URL is: http://www.rickshawbags.com/customize/custom-bag#!thl=rickshaw/bag()

This is a bug introduced by https://bugs.webkit.org/show_bug.cgi?id=71933,
isVariableObject() checks were excluding StaticScopeObjects, this patch
inadvertently changed them to be included.

* runtime/JSType.h:
    - sort JSType enum such that StaticScopeObjectType comes before VariableObjectType,
      and thus is excluded from isVariableObject() checks.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@106999 268f45cc-cd09-0410-ab3c-d52691b4dbfc