Reviewed by Darin Adler.

        Moved MarkedSpace.* to NewSpace.* in preparation for more renaming
        https://bugs.webkit.org/show_bug.cgi?id=62268

        * CMakeLists.txt:
        * GNUmakefile.list.am:
        * JavaScriptCore.gypi:
        * JavaScriptCore.pro:
        * JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
        * JavaScriptCore.xcodeproj/project.pbxproj:
        * heap/Heap.h:
        * heap/MarkedBlock.h:
        * heap/MarkedSpace.cpp: Removed.
        * heap/MarkedSpace.h: Removed.
        * heap/NewSpace.cpp: Copied from Source/JavaScriptCore/heap/MarkedSpace.cpp.
        * heap/NewSpace.h: Copied from Source/JavaScriptCore/heap/MarkedSpace.h.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@88368 268f45cc-cd09-0410-ab3c-d52691b4dbfc