Move Region into its own header
https://bugs.webkit.org/show_bug.cgi?id=113617

Reviewed by Geoffrey Garen.

BlockAllocator.h is getting a little crowded. We should move the Region class into its own
header, since it's pretty independent from the BlockAllocator.

* GNUmakefile.list.am:
* JavaScriptCore.gypi:
* JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
* JavaScriptCore.vcxproj/JavaScriptCore.vcxproj:
* JavaScriptCore.vcxproj/JavaScriptCore.vcxproj.filters:
* JavaScriptCore.xcodeproj/project.pbxproj:
* heap/BlockAllocator.h:
(JSC):
* heap/Region.h: Added.
(JSC):
(DeadBlock):
(JSC::DeadBlock::DeadBlock):
(Region):
(JSC::Region::blockSize):
(JSC::Region::isFull):
(JSC::Region::isEmpty):
(JSC::Region::isCustomSize):
(JSC::Region::create):
(JSC::Region::createCustomSize):
(JSC::Region::Region):
(JSC::Region::~Region):
(JSC::Region::reset):
(JSC::Region::allocate):
(JSC::Region::deallocate):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147282 268f45cc-cd09-0410-ab3c-d52691b4dbfc