JavaScriptCore:

JavaScriptCore:

        Reviewed by Eric.

	- fixed <rdar://problem/4260481> Remove Reference type from JavaScriptCore

	Also fixed some bugs with for..in enumeration while I was at it. object
	properties now come before prototype properties and duplicates
	between object and prototype are listed only once.

        * JavaScriptCore.xcodeproj/project.pbxproj:
        * kjs/IdentifierSequencedSet.cpp: Added.
        (KJS::IdentifierSequencedSet::IdentifierSequencedSet):
        (KJS::IdentifierSequencedSet::deallocateVector):
        (KJS::IdentifierSequencedSet::~IdentifierSequencedSet):
        (KJS::IdentifierSequencedSet::insert):
        * kjs/IdentifierSequencedSet.h: Added.
        (KJS::IdentifierSequencedSetIterator::IdentifierSequencedSetIterator):
        (KJS::IdentifierSequencedSetIterator::operator*):
        (KJS::IdentifierSequencedSetIterator::operator->):
        (KJS::IdentifierSequencedSetIterator::operator++):
        (KJS::IdentifierSequencedSetIterator::operator==):
        (KJS::IdentifierSequencedSetIterator::operator!=):
        (KJS::IdentifierSequencedSet::begin):
        (KJS::IdentifierSequencedSet::end):
        (KJS::IdentifierSequencedSet::size):
        * kjs/array_instance.h:
        * kjs/array_object.cpp:
        (ArrayInstanceImp::getPropertyNames):
        (ArrayInstanceImp::setLength):
        (ArrayInstanceImp::pushUndefinedObjectsToEnd):
        * kjs/nodes.cpp:
        (ForInNode::execute):
        * kjs/nodes.h:
        * kjs/object.cpp:
        (KJS::ObjectImp::getPropertyNames):
        * kjs/object.h:
        * kjs/property_map.cpp:
        (KJS::PropertyMap::getEnumerablePropertyNames):
        (KJS::PropertyMap::getSparseArrayPropertyNames):
        * kjs/property_map.h:
        * kjs/protect.h:
        * kjs/protected_reference.h: Removed.
        * kjs/reference.cpp: Removed.
        * kjs/reference.h: Removed.
        * kjs/reference_list.cpp: Removed.
        * kjs/reference_list.h: Removed.
        * kjs/ustring.h:
        (KJS::UString::impl):
        * kxmlcore/HashSet.h:

LayoutTests:

        Reviewed by Eric.

        - test case for some fixes I made to for..in enumeration. object
	properties now come before prototype properties and duplicates
	between object and prototype are listed only once.

        * fast/js/for-in-expected.txt: Added.
        * fast/js/for-in.html: Added.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@10744 268f45cc-cd09-0410-ab3c-d52691b4dbfc