REGRESSION(r143654): some jquery test asserts on 32 bit debug build
https://bugs.webkit.org/show_bug.cgi?id=110756

Reviewed by Geoffrey Garen.
        
TypeOf does speculations manually, so it should mark its JSValueOperand as doing ManualOperandSpeculation.

* dfg/DFGSpeculativeJIT32_64.cpp:
(JSC::DFG::SpeculativeJIT::compile):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@144005 268f45cc-cd09-0410-ab3c-d52691b4dbfc