Separated Completion from Value and made it a pure stack
object. This removed another 160,000 of the remaining 580,000
garbage collected object allocations.
6% speed increas on cvs-js-performance test.
kjs/completion.cpp: Added. New implementation that doesn't
require a ValueImp *.
(Completion::Completion):
(Completion::complType):
(Completion::value):
(Completion::target):
(Completion::isValueCompletion):
kjs/completion.h: Added.
kjs/function.cpp:
(GlobalFuncImp::call): Removed some (apparently mistaken) uses of
Completion as a Value.
kjs/internal.cpp:
kjs/internal.h:
kjs/types.cpp: Removed Completion stuff.
kjs/types.h: Removed Completion stuff.
JavaScriptCore.pbproj/project.pbxproj: Added new header.
