Refactor Heap allocation logic into separate AllocationSpace class

Refactor Heap allocation logic into separate AllocationSpace class
https://bugs.webkit.org/show_bug.cgi?id=68409

Reviewed by Gavin Barraclough.

../../../../Volumes/Data/git/WebKit/OpenSource/Source/JavaScriptCore:

This patch hoists direct manipulation of the MarkedSpace and related
data out of Heap and into a separate class.  This will allow us to
have multiple allocation spaces in future, so easing the way towards
having GC'd backing stores for objects.

* CMakeLists.txt:
* GNUmakefile.list.am:
* JavaScriptCore.exp:
* JavaScriptCore.gypi:
* JavaScriptCore.pro:
* JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.def:
* JavaScriptCore.vcproj/JavaScriptCore/JavaScriptCore.vcproj:
* JavaScriptCore.xcodeproj/project.pbxproj:
* debugger/Debugger.cpp:
(JSC::Debugger::recompileAllJSFunctions):
* heap/AllocationSpace.cpp: Added.
(JSC::AllocationSpace::tryAllocate):
(JSC::AllocationSpace::allocateSlowCase):
(JSC::AllocationSpace::allocateBlock):
(JSC::AllocationSpace::freeBlocks):
(JSC::TakeIfEmpty::TakeIfEmpty):
(JSC::TakeIfEmpty::operator()):
(JSC::TakeIfEmpty::returnValue):
(JSC::AllocationSpace::shrink):
* heap/AllocationSpace.h: Added.
(JSC::AllocationSpace::AllocationSpace):
(JSC::AllocationSpace::blocks):
(JSC::AllocationSpace::sizeClassFor):
(JSC::AllocationSpace::setHighWaterMark):
(JSC::AllocationSpace::highWaterMark):
(JSC::AllocationSpace::canonicalizeBlocks):
(JSC::AllocationSpace::resetAllocator):
(JSC::AllocationSpace::forEachCell):
(JSC::AllocationSpace::forEachBlock):
(JSC::AllocationSpace::allocate):
* heap/Heap.cpp:
(JSC::Heap::Heap):
(JSC::Heap::reportExtraMemoryCostSlowCase):
(JSC::Heap::getConservativeRegisterRoots):
(JSC::Heap::markRoots):
(JSC::Heap::clearMarks):
(JSC::Heap::sweep):
(JSC::Heap::objectCount):
(JSC::Heap::size):
(JSC::Heap::capacity):
(JSC::Heap::globalObjectCount):
(JSC::Heap::objectTypeCounts):
(JSC::Heap::collect):
(JSC::Heap::canonicalizeBlocks):
(JSC::Heap::resetAllocator):
(JSC::Heap::freeBlocks):
(JSC::Heap::shrink):
* heap/Heap.h:
(JSC::Heap::objectSpace):
(JSC::Heap::sizeClassForObject):
(JSC::Heap::allocate):
* jit/JITInlineMethods.h:
(JSC::JIT::emitAllocateBasicJSObject):
* runtime/JSGlobalData.cpp:
(JSC::JSGlobalData::recompileAllJSFunctions):
(JSC::JSGlobalData::releaseExecutableMemory):

../../../../Volumes/Data/git/WebKit/OpenSource/Source/WebCore:

Adding a forwarding header.

* ForwardingHeaders/heap/AllocationSpace.h: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@95559 268f45cc-cd09-0410-ab3c-d52691b4dbfc