are forward in the regiter file.

Reviewed by Sam Weinig.

* dfg/DFGOperations.cpp:
* jit/JITStubs.cpp:
(JSC::DEFINE_STUB_FUNCTION): Use new API.

* runtime/ArgList.cpp:
(JSC::ArgList::getSlice): No need to provide an arbitrary constructor --
getSlice can do the right thing by using its rights to private data.

* runtime/ArgList.h: Removed constructor that took a forward-contiguous
set of arguments.

* runtime/JSArray.cpp:
(JSC::JSArray::finishCreation):
* runtime/JSArray.h:
(JSC::JSArray::create):
* runtime/JSGlobalObject.h:
(JSC::constructArray): Added explicit support for creating an array from
a pre-allocated set of values, so we could stop relying on the ArgList
API we want to remove.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@100375 268f45cc-cd09-0410-ab3c-d52691b4dbfc