Range should be constructable.

https://bugs.webkit.org/show_bug.cgi?id=115639

Patch by László Langó <llango.u-szeged@partner.samsung.com> on 2014-01-23
Reviewed by Ryosuke Niwa.

Source/WebCore:

http://www.w3.org/TR/2013/WD-dom-20131107/#interface-range
Now we can do `new Range()` instead of `document.createRange()`.

Backported from Blink: https://chromium.googlesource.com/chromium/blink/+/47ca40efdf58a4787aa33aa75a35778899b1c002%5E%21

Test: fast/dom/Range/range-constructor.html

* dom/Range.cpp:
(WebCore::Range::create):
* dom/Range.h:
* dom/Range.idl:

LayoutTests:

* fast/dom/Range/range-constructor-expected.txt: Added.
* fast/dom/Range/range-constructor.html: Added.
* fast/dom/dom-constructors-expected.txt:
* fast/dom/dom-constructors.html:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@162601 268f45cc-cd09-0410-ab3c-d52691b4dbfc