https://bugs.webkit.org/show_bug.cgi?id=120144

Reviewed by Sam Weinig.

Add methods to JSGlobalObject to declare vars, consts, and functions.

* runtime/Executable.cpp:
(JSC::ProgramExecutable::initializeGlobalProperties):
* runtime/Executable.h:
    - Moved declaration code to JSGlobalObject
* runtime/JSGlobalObject.cpp:
(JSC::JSGlobalObject::addGlobalVar):
    - internal implementation of addVar, addConst, addFunction
* runtime/JSGlobalObject.h:
(JSC::JSGlobalObject::addVar):
(JSC::JSGlobalObject::addConst):
(JSC::JSGlobalObject::addFunction):
    - Added methods to declare vars, consts, and functions



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@154434 268f45cc-cd09-0410-ab3c-d52691b4dbfc